Words you didn’t know existed

Acnestis	Unless you're a contortionist, extremely flexible or just have really long arms, scratching that pesky itch between your shoulder blades can be an arduous task. That area is called acnestis, derived from the Greek words, aknestis, which means spine; and knestos, meaning scratched.
Abature		abature is the trail of trampled grass an animal leaves behind it
Abilene		the property of coolness that the underside of the pillow entails.
Abligurition	abligurition (spending too much money on food and drink — worth remembering that one in the run up to Christmas)
Accismus	Turning down or pretending not to be interested in something that you really want is called accismus.
Adoxography	An adoxography is a fine work of writing on a pointless or trivial subject.
Aegilops	Refers to a type of grass, but also the longest English word with the letters arranged alphabetically.
Aglet		The plastic coating or metal tip on a shoelace.
Agraffe		The wired cage that holds the cork in a bottle of champagne.
Agrestic	Rural; rustic. Usage: My grandfather had a very agrestic upbringing; his schoolteacher was a horse.
Allotriophagy	The desire, the morbid longing, to devour extraordinary substances commonly regarded as inedible, innutritious, or even hurtful.
Amplexation	Amplexation is a 17th century word for embracing someone.
Anepronym	An anepronym is a trade name that has come to be used generally in the language, like Kleenex, Jacuzzi or hoover.
Anschlusstreffer  a goal scored when two down, bringing you within one of an equaliser. An equivalent English word might be "prequaliser".
Antepenultimate	Next to the next to last
Anthypophora	Posing a question for rhetorical effect and then answering it yourself is called anthypophora.
Aphthongs 	silent letters in words like "knight" or "fight" or "Django." 
Apricity  	When you're outside on a cold day and you can feel the warmth of the sun, you're experiencing a moment of apricity.
Aquabib		An aquabib is someone who chooses to drink water rather than alcohol.
Aquabob		Aquabob is an old name for an icicle.
Arachibutyrophobia 	The fear of peanut butter sticking to the roof of the mouth.
Arms Akimbo	Hands on your hips.
Armscye		The armhole in most clothing.
Arsefeet	In Tudor English, ducks were nicknamed arsefeet because their legs are so far back on their bodies.
Arselings	In Old English, arselings meant “heading in a backward direction.”
Artillery	In 1930s slang, artillery was any food that caused gas.
Autohagiography	An autohagiography is an autobiography that makes the subject appear better than they actually are.
Autological	An autological word is one that describes itself — like short or unhyphenated.
Bail		The handle of a bucket or a kettle.
Barm 		The foam on a beer.
Batrachomyomachy	A batrachomyomachy is a petty, pointless argument or quibble.
Battologize	To battologize means “to repeat a word so incessantly in conversation that it loses all meaning and impact.”
Belter-Werrits	A belter-werrits is a teasing or annoying child.
Biblioklept  	A compulsive book thief or hoarder is a biblioklept.
Bildungsroman	Used when referring to literary characters, such as Don Quixote or Tom Jones, who experience some kind of emotional growth as they go about their picaresque adventures.
Box Tent 	The plastic table-like item found in the middle of a pizza box is called a box tent and was patented in 1983. 
Brannock 	Device	The thing they use to measure your feet at the shoe store.
Bumfodder (Or Bum Fodder)	Toilet paper or other material of the same use. Later (1650s), this became a term for a newspaper or magazine. It has also been used to mean bureaucratic or officious documents,  or a derogatory term for large, but necessary, amounts of paperwork.
Buttock-Mail 	In the 16th and 17th century, buttock-mail was the name of a tax once levied in Scotland on people who had sex out of wedlock.
Cachinnate	To laugh very, very loudly. Think of that friend who has to stop laughing before anyone can even contemplate moving on to the next topic of conversation.
Cacospectomania	A compulsive desire to look at something that horrifies you — like a horror film or an injury — is called cacospectomania.
Calamistrate	To calamistrate is to curl your hair.
Callomaniac	A callomaniac is someone who thinks they’re more beautiful than they actually are.
Capelet		A small cape usually covering only the shoulders
Carpet-Monger	In 16th century English, a carpet-monger was a womanizing man.
Caruncula  	The small triangular bump on the inside corner of each eye is called the caruncula.
Cataglottism	Kissing with the tongue
Cham		To eat with your mouth open
Chanking	Spat-out food.
Circumgyrating	Running around in circles, or causing something to move in a circular motion. Rolling, turning or travelling about.
Clank-Napper	In the 18th century, a clank-napper was a thief who specialized in stealing silverware.
Clover Mite	The tiny red bug found on concrete and bricks.
Cockmedainty	In 18th century English, a cockmedainty was an overly prim or fastidious person.
Collywobbles	Butterflies in your stomach.
Columella Nasi	The space between your nostrils.
Contronym  	A word that can be its own antonym is called a contronym. For example, cleave can mean to sever or to cling. What's that? You need four more examples? I will provide some. Off means deactivated, as in to turn off, but it also means activated as is in the alarm went off. Weather can mean to withstand or come safely through or it can mean to be worn away. If you seed your lawn, you add seeds but if you seed a tomato, you remove them. And left can mean either remaining or departed.
Cornicione	The outer part of the crust on a pizza.
Cover-Slut	In 19th century English, a cover-slut was a long cloak or overcoat worn to hide a person’s untidy or dirty clothes underneath.
Crapulous Or Crapulence	If you're packing on the Kummerspeck, you might be feeling crapulous. Though it sounds like a word invented by a middle-schooler in the 1990's, crapulous dates back to the 1530's when it was used to describe that gross nauseated feeling that you get from eating or drinking too much.
Crepuscular Rays	Rays of sunlight coming from a certain point in the sky.
Crockan		A crockan is a piece of food that has shrivelled up and burned in cooking.
Cryptolalia	Talking in code is called cryptolalia.
Cumberground	A cumberground is an utterly useless person who literally serves no other purpose than to take up space.
Dactylonymy	Counting on your fingers is properly called dactylonymy.
Darkle		The opposite of “sparkle.” To become dark.
Defenestrate	To throw out a window.
Deipnosophist	A skilled orator at the dinner table. A character that uses Wildean, Simpsonian wit such as "...And then I said let's get out of these wet clothes and into a dry Martini" at dinner parties
Dermatoglyphics	Dermatoglyphics is the study of fingerprints and skin patterns. It is also the longest English word comprised entirely of different letters.
Desire Path	A path created by natural means, simply because it is the “shortest or most easily navigated"
Dismantle	To dismantle originally meant “to remove a cloak.”
Doltsmertz	The depression one feels when comparing the world you want to the world that is.
Doryphore	A doryphore is a pestering person who draws attention to other people’s errors.
Dragonism	The practise of staying awake forever, ready to attack, or  ‘unremitting watchfulness’ and ‘watchful guardianship’.  Also, a strict or domineering manner.
Dutch Feast	A Dutch feast is one at which the host gets drunk before his hosts do.
Dysania		The state of finding it hard to get out of the bed in the morning.
Egg-Suckers	Toucans used to be called egg-suckers.
Eleutheromania	A manic yearning for freedom.
Embrangle	To embroil, confuse, or entangle. Usage: Mom's plants dangled, I got embrangled, and now I have two sprained ankles.
Enneacontakaienneagon	A shape with 99 sides would be called an enneacontakaienneagon.
Erythrophobe 	Someone who blushes easily.
Euneirophrenia	The feeling of calmness or contentedness that follows a pleasant dream is called euneirophrenia.
Euthymy		Euthymy is a 17th century word for total tranquillity and peace of mind.
Explode		To explode originally meant “to jeer a performer off the stage.”
Exulcerate	To ‘exulcerate’ someone literally means to annoy or irritate them as much as an ulcer would.
Exuviate	To shed; cast off. Usage: It becomes harder to exuviate a bad reputation after you've exuviated your pants in public.
Famgrasping	‘Famgrasping’ is when you shake hands with someone in an agreement or to make up a difference. ‘Fam’ corresponds with the word hand.
Feat		A dangling piece of curly hair.
Ferrule 	The protective point or knob on the far end of an umbrella, or the metal part at the end of a pencil.
Fillip		The strip or shaped piece used for the sides of the fingers of a glove
Flabellation	Flabellation is the use of a fan to cool something down.
Flapdoodler	In Victorian slang, a flapdoodler was an annoyingly boastful or self-righteous person.
Floccinaucinihilipilification	The declaration of an item being useless, and is also the longest non-medical term in the English language.
Fourchette 	The act of snapping one's fingers.
Frisson		The chills you get when listening to a really good piece of music. Or whenever you do something crazy and feel a rush of excitement you are experiencing a “frisson”.
Frobly-Mobly	Half finished, “half arsed”.
Frolesworth	The minimum time it is necessary to spend frowning in deep concentration at each picture in an art gallery in order that everyone else doesn't think you've a complete moron.
Frowst		To frowst is to keep yourself warm in cold weather.
Frutescent	Resembling or assuming the form of a shrub. Usage: A few weeks without a haircut and my poodle looks positively frutescent.
Fubsy		Chubby or squat. Usage: Despite my new year's health resolutions, holiday leftovers kept me fubsy well into March.
Futterneid	The feeling when you´re eating with other people (especially members of your family) and you´re paranoid about not getting enough food yourself.
Gadzookery	‘Gadzookery’, also called ‘tushery’, is the deliberate use of old-fashioned language in modern writing. It comes from the exclamation ‘gadzooks’, which some suggest is an alteration of ‘God’s hooks’, the nails of Christ’s crucifixion.
Gandermooner	In Tudor English, a gandermooner was a man who flirted with other women while his wife recovered from childbirth.
Glabella	The space between your eyebrows.
Glocidate	To glocidate is to cluck like a hen
Gloffin		Gloffin is an old Scots English word for a short, disturbed sleep.
Gnomon		The shaft of a sundial that casts the shadow.
Googleganger	Your "Googleganger" is the person with your name who shows up in Google search results when you Google yourself. Like, for me, there is a John Green who's known as one of the "Four Horsemen of Sasquatchery." Then there's John Green the realtor who has JohnGreen.com - my mortal enemy - and of course John Green with the mustache
Goostrumnoodle	Goostrumnoodle is a Cornish dialect word for a fool.
Grawlix		The %#$&@ in comics, or anything else, used in place of a curse word. Also called jarns, nittles, and quimp.
Griffonage	Doctors are notorious for "griffonage" or illegible handwriting
Growlery	A growlery is a place you like to retire to when you’re unwell or in a bad mood. It was coined by Charles Dickens in Bleak House (1853).
Guttle		To eat greedily or voraciously; gormandize.
Gynecomastia	Man-boobs.
Haberdashers Of Pronouns	In the 18th century, teachers were nicknamed “haberdashers of pronouns.”
Halitophobia	A highly exaggerated concern of having bad breath.
Hanvayge	To hanvayge is to wait around for someone to turn up...
Headmark	A person’s headmark comprises all of the facial features and characteristics that make them recognizable as themselves.
Heathen Philosopher	In 18th century slang, a heathen philosopher was someone whose underwear could be seen through his trouser pockets.
Heautoscopy	A heautoscopy is a dream or hallucination in which a person imagines seeing their own body from a distance.
Hecatompedon	A hecatompedon is a building measuring precisely 100ft × 100ft.
Heilsgeschichte	Holy History, sometimes translated as Salvation History. What it conveys, though, is the whole history and purpose of Jesus's life and ministry.
Hipple		A little heap is called a hipple.
Hippocrepiform	Anything described as hippocrepiform is shaped like a horseshoe.
Hippopotomonstrosesquipedaliophobia	The fear of long words
Hobbledehoy	An awkward, clumsy or ungainly youth. Many of you were complete and utter hobbledehoys growing up, but the bullies at school weren't smart enough to recognise this fact and label you as such.
Hobidy-Boobies	Scarecrows were once known as hobidy-boobies.
Honeyfuggle	To honeyfuggle someone is to trick or deceive them.
Hoozy-Poozy	Hoozy-poozy is an 18th century word for anything idly done just to pass the time.
Hottentottenpotentatentantenattentat	An attempt on the life of the aunt of a Hottentot potentate.
Hum-Durgeon (Humdurgeon / Hum Durgeon / Humdudgeon)	An imaginary illness.
Hypengophobia	Hypengophobia is the hatred of having responsibilities.
Ideolocator	A “you are here” sign.
Idiorepulsive	Repulsed by yourself.
Imberbic	If you’re imberbic then you don’t have a beard.
Interrobang	What it’s called when you combine a question mark with an exclamation point like this: ‽
Jakes		To jakes is to walk mud into a house.
Jamais Vu	What happens when you say a word for so long that it loses its meaning. Limit limit limit limit limit limit limit limit limit.
Jambled		Drunk.
Jirble		To jirble means “to spill a liquid while pouring it because your hands are shaking.”
Jottle		Jottle is an old Scots English word meaning ‘to achieve nothing despite looking busy’.
Katagelophobia	Katagelophobia is the fear of being ridiculed.
Katapepaiderastekenai	To “squander your money on the love of beautiful boys”.
Katzenjammer	A monumentally severe hangover 
Keeper		The loop on a belt that keeps the end in place after it has passed through the buckle.
Korinthenkacker	An anal person overly concerned with trivial details 
Lampus		A lampus is an awkward and clumsy fall, part way through which you try to grab onto something to try and stop from falling.
Lemniscate 	The infinity symbol (or more precisely, "a figure-eight shaped curve whose equation in polar coordinates is ρ2=a2cos 2θ or ρ2=a2 sin 2θ")
Lethologica	the inability to remember a word, or put your finger on the right word.
Liripipe	Sometimes known as a tassle, say, on a graduation cap, liripipe just sounds a lot cooler.
Lollygagging	Spend time aimlessly
Lunule		The white, crescent shaped part of the nail.
Lustre		A period of five years is called a lustre.
Magoos		In the early days of Hollywood, the custard pies thrown in comedy sketches were nicknamed magoos.
Mamihlapinatapai	The look shared by two people looking at each other each hoping the other will do what both desire but neither is willing to do
Masterpiece Of Nightwork	In Victorian slang, a masterpiece of nightwork was a strikingly handsome criminal.
Meniscus	The curve in the surface of a liquid and is produced in response to the surface of the container or another object. It can be either concave or convex."
Metagrobolize	To metagrobolize someone is to utterly confuse them.
Millihelen	A (humorously) proposed a standard unit of measurement for beauty: "the amount of beauty required to launch one ship."
Minimus		Your little toe or finger.
Misophonia	Getting mad at someone for eating or breathing too loudly (among other things). It’s also a brain disorder.
Mogigraphia	Writer's cramp
Mondegreen	Misheard song lyrics.
Monepic Sentence	A monepic sentence is one that contains a single word.
Monkey-Poop	Monkey-poop is an old naval slang word for a smaller-than-normal poop deck.
Mononymous	The practice of becoming famous for only one name spans centuries, from Napoleon and Shakespeare to Beyoncé and Adele. Some even legally go by one name, such as Cher and Hirohito. The word to describe these people is mononymous; the rest of us, who either go by our first and last names, or first, last and middle names, are "polynymous."
Moonstomp	To moonstomp is to dance heavy-footedly...
Morton’S Toe	When your second toe is bigger than your big toe.
Muffin-Wallopers	In Victorian slang, muffin-wallopers were old unmarried or widowed women who would meet up to gossip over tea and cakes.
Muliebrity	The condition of being a woman; femininity. Usage: Frank was banned from the sorority due to his remarkable lack of muliebrity.
Muntin		The strip separating window panes.
Natiform	Something that resembles a butt.
Nibling		The non-gender-specific term for a niece or nephew — like sibling.
Niddick  	The technical term for the nape of your neck.
Niggly Wiggly	The paper strip coming out of the top of every Hershey’s Kiss ever.
Nooningscaup	Rest granted to the farm labourers of Yorkshire after a particularly laborious lunch.
Nurdle		A tiny dab of toothpaste.
Obdormition	The numbness in a limb, often caused by constant pressure on nerves or lack of movement. This is also referred to as a limb "going to sleep."
Obelus		The division sign (÷).
Obliviable	If something is obliviable then it’s able to be forgotten.
Obnunciate	To obnunciate is to announce bad news.
Octothorpe	The pound (#) button on a telephone.
Ogo-Pogoing	Looking for love, ‘wandering around with vague hopes of love’.
Oneirism	A hypnotising daydream. When you see a rabbit scramble past with a pocket watch, saying 'I'm late! I'm late!', you're probably having an oneirism.
Oneirodynia	A troubling, unsettling dream (not quite a nightmare; more like a realistic dream that conveys a highly-possible negativity, such as failing a big exam or losing a relative)
Orchestromaniac.	An orchestromaniac is someone who can’t help but dance.
Ossicones	A giraffe’s horns are properly called ossicones.
Overmorrow	The day after tomorrow.
Oysterhood	Oysterhood means “reclusiveness,” or “an overwhelming desire to stay at home.”
Paleoweltschmerz	The unlikely theory (once seriously proposed) that the dinsosaurs died out due to sheer boredom.
Pareidolia	The human tendency to see faces and other images where none actually exists is called pareidolia.
Paresthesia	That “pins and needles” feeling, like when your foot's asleep.
Peen		The side opposite the hammer’s striking side.
Peladophobia 	The fear of bald people. It is most frequently suffered by balding people. 
Peneomnipotent	To be peneomnipotent is to be almost, but not quite, all-powerful.
Pentapopemptic	A person who has been divorced five times. Most people would give up on love after four divorces, but not a pentapopemptic. Bless them. The world needs more absurdly optimistic people around.
Pentheraphobia 	The fear of your mother-in-law 
Penultimate	Next to last
Percontation	A percontation is a question that requires more than a straightforward “yes” or “no” answer.
Petrichor	The way it smells outside after rain, from the Greek "Petra" meaning stone and "ichor" meaning the blood of the gods and goddesses. The term was coined by two Australian researchers in 1964 and really became a word in 2011 when it popped up in a Doctor Who episode.
Philogrobolized	Hungover, intoxicated, astonied, bedunced, at his wits end.
Philtrum	The groove located just below the nose and above the middle of the lips.
Phloem Bundles	Those long stringy things you see when peeling a banana.
Phosphenes	The lights you see when you close your eyes and press your hands to them.
Picnickery	All the food you take on a picnic is called the picnickery.
Pie-Maggots	In the 17th century, magpies were nicknamed pie-maggots.
Pieta		Any representation of the Virgin Mary mourning over the dead body of Christ
Polly-In-The-Cottage	In Victorian slang, a polly-in-the-cottage was a man who enjoyed doing housework.
Portmanteau	A literary device in which two or more words are joined together to coin a new word. A portmanteau word is formed by blending parts of two or more words but it always refers to a single concept. ... For example, the word “brunch” is formed by splicing two words “breakfast” and “lunch” 
Postprandial	relating to the time afterdinner
Preprandial	relating to the time before dinner
Psithurism	‘psithurism’ is the sound of the wind rustling through leaves.
Puckfist	A puckfist is someone who braggingly dominates a conversation.
Punchclod	A punchclod is someone who works a lowly or difficult, manual job.
Punt  		The indent on the bottom of wine or Champaigne bottle is called a punt.
Pupaphobia	Pupaphobia is the fear of dolls and puppets.
Puppilate	To puppilate is to scream like a peacock.
Purlicue	The space between the thumb and forefingers.
Quincunx  	Thomas Edison had five dots, like the ones you see on dice, tattooed on his left forearm. This pattern is properly, although almost never, referred to as a quincunx. 
Quomodocunquize	To make money in any way that you can.
Rammack		To rammack something is to turn it upside down while searching for something else.
Rasceta		The lines on the inside of your wrist.
Recrement	waste matter; scum. Usage: Sanitation workers were understandably cross when my medieval role-play group started dumping their recrement directly into the street.
Rectal Tenesmus	The feeling of incomplete defecation.
Repdigit	A repdigit is a number comprised of a series of repeated numbers, like 9,999.
Rhinorrhea	Runny nose.
Rhinotillexomania  	Obsessive nose picking is called rhinotillexomania.
Rizzle		The process (almost like meditation) in which you sit in a darkened room, closing you eyes and just sit, usually after a meal.  To relax after a heavy meal.
Roiderbanks	Roiderbanks is an old Yorkshire dialect word for someone who lives extravagantly or beyond their means.
Rounce-Robble-Hobble	In Elizabethan English, a clap of thunder was nicknamed a rounce-robble-hobble.
Rowel		This is the name for the little spiky revolving things on the back of a cowboy’s spurs.
Saudade		The feeling of when you miss something or somebody, but it implies a whole lot more than that.
Scandiknavery 	Deceit or trickery by Scandinavians. 
Schadenfreude	pleasure derived from the misfortunes of others
Scroop 		The rustling swooshy sound that ballgowns make. More generally, its the sound produced by the movement of silk.
Scurryfunge	The time you run around cleaning frantically right before company comes over.
Semantic Satiation	What happens when you say a word so long it loses meaning.
Semordnilap	"A man, a plan, a canal: Panama." Or more simply, "dad." Both are examples of palindromes, which are words or phrases spelled the same way forward and backward. The antithesis of that is a semordnilap, which is a word or phrase that reads one way forward and another backward. Example: "Stressed" becomes "dessert" (pictured above). For those who weren't paying attention, check out what semordnilap spells backward.
Semordnilap  	Palindromes are words or phrases that read the same way forward or backward. Like "Mom" or "Taco Cat" or the sentence "Marge lets Norah see Sharons telegram."  But a Semordnilap reads one way forward, "stressed" and another way backward, "desserts." Other examples include diaper, parts and of course, semordnilap itself
Sermocination	Sermocination is the proper name for posing a question and then immediately answering it yourself.
Sexangles	Hexagons were once called sexangles.
Shivviness	‘Shivviness’ is an old Yorkshire word for the uncomfortable feeling of wearing new underwear. ‘Shiv’ is an old word for thick, coarse wool or linen.
Sister Joseph'S Nodule	Belly Button cancer
Skedaddle	To leave a place suddenly. Usage: "Portland is so over," the hipster bemoaned. "Let's skedaddle to Seattle."
Skeuomorph	“A design feature copied from a similar artifact in another material, even when not functionally necessary.” For example, rivets on jeans, copper color on pennies, the shutter sound on a digital camera, and the pointless tiny handle on a Maple Syrup jar.
Skirr		A whirring sound, as of the wings of birds in flight. Usage: We heard a mighty skirr overhead when the pigeons left their roost, followed by a plop, followed by an expletive.
Slawterpooch	A slawterpooch is a lazy or ungainly person.
Snellen Chart	The chart you look at when you take an eye exam.
Snip-Snappers	In Elizabethan slang, tailors were nicknamed snip-snappers.
Snirtle		To snirtle is to try to suppress a laugh.
Snollygoster	An unscrupulous, untrustworthy person. The snollygoster will frequently take Tim Tams out of the cookie jar, before promptly pointing his sticky finger at someone else.  A shrewd, selfish person, especially a politician. Usage: This November, American voters might elect a snollygoster to the White House.
Snood		The fleshy thing around the neck of a turkey.
Souffle Cup	A ketchup/condiment cup.
Sphenopalatine Ganglioneuralgia	‘Sphenopalatine ganglioneuralgia’ is the proper name for an ice-cream headache. The term ‘ice-cream headache’ has been in use since at least January 1937. The first published use of the term ‘brain freeze’, as it pertains to cold-induced headaches, was in May 1991.
Spraint		The poop of an otter.
Swallocky	A hot day (and expected thunderstorms).  Also ‘clouds that look thundery’ and ‘that a thunderstorm is on the way’.
The Baader-Meinhof Phenomenon	When you see something for the first time and then start to see it EVERYWHERE.
The Zings  	Encounter too many punts, agraffes, and barns in one night and you'll have the Zings or a peppy name for a hangover.
Thrimble	Thrimble is an old Yorkshire word meaning ‘to toy with something in your fingers that you’re reluctant to part with’.
Tines		The prongs on a fork.
Tintinnabulation	The ringing of bells.
Tittle		The dot over an “i” or a “j.”
Tmesis		the act of inserting a word inside of another word (ex: abso-freaking-lutely or any-old-where), also the ONLY English word to start with "tm".
To Play Booty	In 18th century slang, “to play booty” meant “to play a game with the intention of losing.”
Tongueshot	Your tongueshot is the distance within which you can be heard.
Toot-Moot	A toot-moot is a conversation carried out entirely in whispers.
Torschlusspanik	The fear of being left out in the cold and dark when the gate shuts, and comes from the middle ages world of gated cities. A
Tragus		The little lump of flesh just forward of your ear canal, right next to your temple
Transpontine	Anything described as transpontine is located on the opposite side of a bridge.
Trinkgeld	Trinkgeld is money meant only to be spent on drink.
Twiddle-Poop	An effeminate looking man
Twirk		In 16th century English, twirk (spelled with an E, not an I) meant “to twist the hairs of a moustache.”
Unhappen	To unhappen something means to make it look like it never took place.
Unweather	In Old English, bad weather was called unweather.
Uxorious	Excessively fond of one’s wife.
Vagitus		The cry of a newborn baby.
Verso		A left-hand page, or the back of a page
Vicambulist	Someone who walks around in the streets.  Specifically a ‘night foundered vicambulist’ means a ‘street-walker who has got lost in the darkness’. It doesn’t specify if, in this case, ‘street walker’ means ‘prostitute’ or just somebody that walks around the street as the online definition suggests.
Vocable		The na na nas and la la las in song lyrics that don’t have any meaning.
Waffle-Frolic	In 18th century slang, a waffle-frolic was a sumptuous meal or feast.
Wag-Feather	A wag-feather is a cocky, swaggering young man.
Wagger-Pagger-Bagger	In 1920s slang, a wagger-pagger-bagger was a wastepaper basket.
Wamble		Stomach rumbling.
Wamblecropt (Wamble-Cropped / Womblecropped)	Queasy/nauseous, having a rumbling stomach, sickly. Sick at the stomach, crestfallen, dejected.
Wobble-Shop	In 18th century English, a wobble-shop was a place where beer was sold without a license.
Wonder-Horn	A wonder-horn is a collection of amazing things.
Xanthodontic	Yellow-toothed.
Xenodochy	A willingness to entertain strangers is called xenodochy.
Xenoglossy	The ability to speak a language you have never learned.   "I've never learned Russian, but I'm pretty sure that Russian girl is telling her Russian friends that I'm cute - I must have xenoglossy!"
Xyresic		If something is xyresic then it’s razor sharp.
Yarrum		Thieves slang for milk.
Yepsen		The amount you can hold in your hands when you cup them together like a bowl is called the yepsen.
Zarf		The cardboard slip around a coffee cup that keeps you from burning your fingers.  Also, a holder, usually of ornamental metal, for a coffee cup without a handle.  Interestingly Zarf translates to ‘envelope’ from Turkish (originally from Arabic meaning ‘container’ and ‘envelope’) and it was in Turkey (around the 13th century) that coffee became popular. There was a complex ritual surrounding the serving of coffee in Turkey; the coffee was served in cups without handles which were placed in these holders called ‘zarf’.
Zenzizenzizenzic	A 16th century word for a number raised to its eighth power
Zoilist	A zoilist is an unfair or unnecessarily harsh critic, or someone who particularly enjoys finding fault in things. Red Symons and Simon Cowell are examples of zoilists.
Zugzwang  	When you're playing chess and every possible move is to your disadvantage, the situation is called a zugzwang.