40 Words That Start With X

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When the lexicographer Dr. Samuel Johnson put together his Dictionary of the English Language in 1755, there weren't a lot of words that started with X; he even included a disclaimer at the bottom of page 2308 that read, “X is a letter which though found in Saxon words, begins no word in the English language.” Noah Webster went one better when he published his Compendious Dictionary in 1806 that included a single X-word, xebec, defined as “a small three-masted vessel in the Mediterranean Sea.” Although, by the time he compiled his landmark American Dictionary in 1828, that total had risen to 13.

X has never been a common initial letter in English, and even with today’s enormous vocabulary you can still only expect around 0.02 percent of the words in a dictionary to be listed under it. But why not try boosting your vocabulary with these 40 words that start with X.

1. X

On its own, the letter X is listed in the Oxford English Dictionary as a verb meaning “to cross out a single letter of type.” X. X. in Victorian slang meant “double-excellent,” while X. X. X. described anything that was “treble excellent.”

2. XANTHIPPE

Xanthippe was the name of Socrates’ wife, who, thanks to a number of Ancient Greek caricatures, had a reputation for henpecking, overbearing behavior. Consequently her name can be used as a byword for any ill-tempered or cantankerous woman or wife—as used in Shakespeare’s Taming of the Shrew.

3. XANTHOCOMIC

Xanthos was the Ancient Greek word for “yellow,” and as such is the root of a number of mainly scientific words referring to yellow-colored things. So, if you’re xanthocomic, you have yellow hair; if you’re xanthocroic you have fair hair and pale skin; and if you’re xanthodontous, you have yellow teeth.

4. X-CATCHER

In old naval slang, an X-catcher or X-chaser was someone who was good at math—literally someone good at working out the value of x.

5. X-DIVISION

Victorian slang for criminals or pickpockets, or people who make a living by some underhand means.

6. X-DOUBLE-MINUS

1960s slang for something really, really terrible.

7. XENAGOGUE

Derived from the same root as xenophobia, a xenagogue is someone whose job it is to conduct strangers or to act as a guide while…

8. XENAGOGY

…a xenagogy is a guidebook.

9. XENIAL

The adjective xenial is used to describe a friendly relationship between two parties, in particular between a hospitable host and his or her guests, or diplomatically between two countries.

10. XENIATROPHOBIA

Don’t like going to see doctors you don’t know? Then you’re xeniatrophobic.

11. XENIUM

A xenium is a gift or offering given to a stranger, which in its native Ancient Greece would once have been a lavish feast or a refreshing spread of food and fruit. In the 19th century art world, however, xenium came to refer to a still-life painting depicting something like a extravagant display of food or a bowl of fruit.

12. XENIZATION

A 19th century word meaning “the act of traveling as a stranger.”

13. XENOCRACY

A government formed by foreigners or outsiders is a xenocracy. A member of one is a xenocrat.

14. XENODOCHEIONOLOGY

Defined as “the lore of hotels and inns” by Merriam-Webster.

15. XENODOCHIUM

A guesthouse or hostel, or any similar stopping place for travelers or pilgrims.

16. XENODOCHY

A 17th century word for hospitality. If you’re xenodochial then you like to entertain strangers.

17. XENOGLOSSY

The ability to speak a language that you’ve apparently never learnt.

18. XENOLOGY

The scientific study of extraterrestrial phenomena is xenology. The study of extraterrestrial life forms is xenobiology.

19. XENOMANIA

The opposite of xenophobia is xenomania or xenophilia, namely an intense enthusiasm or fondness for anything or anyone foreign.

20. XENOMORPH

Something unusually or irregularly shaped is a xenomorph—which is why it’s become another name for the eponymous creature in the Alien film franchise.

21. XENOTRANSPLANTATION

Transplanting organic matter from a non-human into a human (like a pig’s heart valve into a human heart) is called xenotransplantation. Whatever it is that’s transplanted is called the xenograft.

22. XERIC

An ecological term used to describe anywhere extremely dry or arid. If it’s xerothermic, then it’s both dry and hot.

23. XERISCAPE

If you live in a xeric area, then you’ll have to xeriscape your garden. It’s the deliberate use of plants that need relatively little moisture or irrigation to landscape an arid location.

24. XEROCHILIA

The medical name for having dry lips. Having a dry mouth is xerostomia.

25. XEROCOPY

A xerographic copy of a document—or, to put it another way, a photocopy.

26. XEROPHAGY

The eating of dry food is xerophagy. It mightn’t sound like it, but it was originally a religious term.

27. XESTURGY

The proper name for the process of polishing.

28. XILINOUS

Something described as xilinous resembles or feels like cotton…

29. XIPHOID

…while something described as xiphoid resembles a sword.

30. XOANON

Derived from the Greek for “carve” or “scrape,” a xoanon is a carved idol of a deity.

31. XTAL

An abbreviation of “crystal,” according to the OED.

32. XYLOGRAPHER

A 19th century word for a wood engraver.

33. XYLOID

Why say that something is “woody” when you can say that it’s xyloid?

34. XYLOPOLIST

A 17th century formal name for a timber merchant.

35. XYLOTOMOUS

Describes anything or anyone particularly good at wood-cutting or wood-boring.

36. XYRESIC

Means “razor-sharp.”

37. XYROPHOBIA

The fear of being close to or touching sharp implements.

38. XYLANTHRAX

Nowhere near as nasty as it sounds, this is just an old name for what we now call charcoal.

39. XYSTUS

A type of covered walkway or portico.

40. X.Y.Z.

Late 19th century slang for a journalist who takes on any work going, or else 18th century slang for a dandyish or “exquisite” young man.

Why is Winnie the Pooh Called a Pooh?

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iStock.com/CatLane

Since A.A. Milne published the first official Winnie the Pooh story in 1926, the character has become beloved by children across many generations. Milne’s writing clearly struck a chord, and the character’s many subsequent TV and film adaptations have endeared him to an even wider audience.

But why is Winnie called a Pooh rather than a bear? Given that most children (and grown-ups, for that matter) have a different idea of what a Pooh is, how has the name stuck?

The answer lies back in the 1920s.

In fact, when first introduced by Milne, Winnie wasn’t even Winnie. Initially, he went by the name of Edward Bear, before changing to Winnie in time for that aforementioned official 1926 debut. The "Winnie" part of the name came from a visit to the London Zoo, where Milne saw a black bear who had been named after the city of Winnipeg, Canada.

As for Pooh? Well, originally Pooh was a swan, a different character entirely.

In the book When We Were Very Young (the same book that introduced Edward Bear), Milne wrote a poem, telling how Christopher Robin would feed the swan in the mornings.

He told how Christopher Robin had given the swan the name "Pooh," explaining that “this is a very fine name for a swan, because if you call him and he doesn’t come (which is a thing swans are good at), then you can pretend that you were just saying ‘Pooh!’ to show him how little you wanted him."

Milne indeed knew what he was doing by using such a word. The names "Winnie" and "Pooh" were soon brought together, and Winnie the Pooh was born. Milne still took a little time out to explain why Winnie was a Pooh, though.

As he would write in the first chapter of the first Winnie the Pooh book, “But his arms were so stiff ... they stayed up straight in the air for more than a week, and whenever a fly came and settled on his nose he had to blow it off. And I think—but I am not sure—that that is why he is always called Pooh."

It's not the most convincing explanation, but it's a formal explanation nonetheless.

Not that the reasoning ultimately mattered too much. The name stuck, having never seen a focus group in its life. A much loved childhood character, with a vaguely funny name, would go on to superstardom. And even be honored with his own holiday, Winnie the Pooh Day, which occurs annually on January 18th.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

Why is Winnie the Pooh Called a Pooh?

iStock.com/CatLane
iStock.com/CatLane

Since A.A. Milne published the first official Winnie the Pooh story in 1926, the character has become beloved by children across many generations. Milne’s writing clearly struck a chord, and the character’s many subsequent TV and film adaptations have endeared him to an even wider audience.

But why is Winnie called a Pooh rather than a bear? Given that most children (and grown-ups, for that matter) have a different idea of what a Pooh is, how has the name stuck?

The answer lies back in the 1920s.

In fact, when first introduced by Milne, Winnie wasn’t even Winnie. Initially, he went by the name of Edward Bear, before changing to Winnie in time for that aforementioned official 1926 debut. The "Winnie" part of the name came from a visit to the London Zoo, where Milne saw a black bear who had been named after the city of Winnipeg, Canada.

As for Pooh? Well, originally Pooh was a swan, a different character entirely.

In the book When We Were Very Young (the same book that introduced Edward Bear), Milne wrote a poem, telling how Christopher Robin would feed the swan in the mornings.

He told how Christopher Robin had given the swan the name "Pooh," explaining that “this is a very fine name for a swan, because if you call him and he doesn’t come (which is a thing swans are good at), then you can pretend that you were just saying ‘Pooh!’ to show him how little you wanted him."

Milne indeed knew what he was doing by using such a word. The names "Winnie" and "Pooh" were soon brought together, and Winnie the Pooh was born. Milne still took a little time out to explain why Winnie was a Pooh, though.

As he would write in the first chapter of the first Winnie the Pooh book, “But his arms were so stiff ... they stayed up straight in the air for more than a week, and whenever a fly came and settled on his nose he had to blow it off. And I think—but I am not sure—that that is why he is always called Pooh."

It's not the most convincing explanation, but it's a formal explanation nonetheless.

Not that the reasoning ultimately mattered too much. The name stuck, having never seen a focus group in its life. A much loved childhood character, with a vaguely funny name, would go on to superstardom. And even be honored with his own holiday, Winnie the Pooh Day, which occurs annually on January 18th.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

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