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catapult (n.)[catapult 词源字典]: 1570s, from Middle French catapulte and directly from Latin catapulta "war machine for throwing," from Greek katapeltes, from kata "against" (see cata-) + base of pallein "to toss, hurl" (see pulse (n.1)). As an airplane-launching device on an aircraft-carrier by 1927.[catapult etymology, catapult origin, 英语词源]
catapult (v.): 1848, "to throw with a catapult," from catapult (n.). Intransitive sense by 1928. Related: Catapulted; catapulting.
cataract (n.): early 15c., "a waterfall, floodgate," from Latin cataracta "waterfall," from Greek katarhaktes "waterfall, broken water; a kind of portcullis," noun use of an adjective compound meaning "swooping, down-rushing," from kata "down" (see cata-). The second element is traced either to arhattein "to strike hard" (in which case the compound is kat-arrhattein), or to rhattein "to dash, break."

Its alternative sense in Latin of "portcullis" probably was passed through French to form the English meaning "eye disease" (early 15c.), on the notion of "obstruction" (to eyesight).
catarrh (n.): late 14c., from Medieval Latin catarrus, from Late Latin catarrhus, from Greek katarrhous "a catarrh, a head cold," literally "a flowing down," earlier kata rrhoos, ultimately from kata- "down" (see cata-) + rhein "to flow" (see rheum). Related: Catarrhalcatarrhous.
catastrophe (n.): 1530s, "reversal of what is expected" (especially a fatal turning point in a drama), from Latin catastropha, from Greek katastrophe "an overturning; a sudden end," from katastrephein "to overturn, turn down, trample on; to come to an end," from kata "down" (see cata-) + strephein "turn" (see strophe). Extension to "sudden disaster" is first recorded 1748.
catastrophic (adj.): 1824, from catastrophe + -ic. Related: Catastrophical; catastrophically.
catastrophism (n.): as a geological or biological theory, 1869, coined by Huxley from catastrophe + -ism.
By CATASTROPHISM I mean any form of geological speculation which, in order to account for the phenomena of geology, supposes the operation of forces different in their nature, or immeasurably different in power, from those which we at present see in action in the universe. [T.H. Huxley, "Address" to the Geological Society of London, Feb. 19, 1869]
Related: Catastrophist.
catatonia (n.): 1888, from medical Latin catatonia; replacing katatonia (1880s), which was formed directly from Greek kata- "down" (see cata-) + tonos "tone" (see tenet) + abstract noun ending -ia.
catatonic (adj.): 1899, from catatonia + -ic. As a noun from 1902.
catawampus (adj.): also catawampous, cattywampus, catiwampus, etc. (see "Dictionary of American Slang" for more), American colloquial. First element perhaps from obsolete cater "to set or move diagonally" (see catty-cornered); second element perhaps related to Scottish wampish "to wriggle, twist, or swerve about." Or perhaps simply the sort of jocular pseudo-classical formation popular in the slang of those times, with the first element suggesting Greek kata-.

Earliest use seems to be in adverbial form, catawampusly (1834), expressing no certain meaning but adding intensity to the action: "utterly, completely; with avidity, fiercely, eagerly." It appears as a noun from 1843, as a name for an imaginary hobgoblin or fright, perhaps from influence of catamount. The adjective is attested from the 1840s as an intensive, but this is only in British lampoons of American speech and might not be authentic. It was used in the U.S. by 1864 in a sense of "askew, awry, wrong" and by 1873 (noted as a peculiarity of North Carolina speech) as "in a diagonal position, on a bias, crooked."
Catawba (n.): type of American grape, 1857, the name is that of a river in South Carolina, U.S., where the grape was found. The river is named for the Katahba Indian group and language (Siouan), from katapu "fork of a stream," itself a Muskogean loan-word.
catbird (n.): 1731, common name for the North American thrush (Dumetella Carolinensis), so called from its warning cry, which resembles that of a cat; from cat (n.) + bird (n.1). Catbird seat is a 19c. Dixieism, popularized by Brooklyn Dodgers baseball announcer Red Barber and by author James Thurber (1942).
"She must be a Dodger fan," he had said. "Red Barber announces the Dodger games over the radio and he uses those expressions--picked 'em up down South." Joey had gone on to explain one or two. "Tearing up the pea patch" meant going on a rampage; "sitting in the catbird seat" means sitting pretty, like a batter with three balls and no strikes on him. [James Thurber, "The Catbird Seat," "The New Yorker," Nov. 14, 1942]
catcall (n.): 1650s, a type of noisemaker (Johnson describes it as a "squeaking instrument") used to express dissatisfaction in play-houses, from cat (n.) + call (n.); presumably because it sounded like an angry cat. As a verb, attested from 1734.
catch (v.): c. 1200, "to take, capture," from Anglo-French or Old North French cachier "catch, capture" (animals) (Old French chacier "hunt, pursue, drive (animals)," Modern French chasser "to hunt;" making it a doublet of chase (v.)), from Vulgar Latin *captiare "try to seize, chase" (also source of Spanish cazar, Italian cacciare), from Latin captare "to take, hold," frequentative of Latin capere "to take, hold" (see capable).

Senses in early Middle English also included "chase, hunt," which later went with chase (v.). Of infections from 1540s; of fire from 1734; of sleep, etc., from early 14c. Related: Catched (obsolete); catching; caught.

Meaning "act as a catcher in baseball" recorded from 1865. To catch on "apprehend" is 1884, American English colloquial. To catch (someone's) eye is first attested 1813, in Jane Austen. Catch as catch can first attested late 14c.
catch (n.): late 14c., "device to hold a latch of a door," also "a trap;" also "a fishing vessel," from catch (v.). Meaning "action of catching" attested from 1570s. Meaning "that which is caught or worth catching" (later especially of spouses) is from 1590s. Sense of "hidden cost, qualification, etc." is slang first recorded 1855 in P.T. Barnum.
Catch-22 (n.): from the title of Joseph Heller's 1961 novel. In widespread use only after release of the movie based on the book in 1970. The "catch" is that a bomber pilot is insane if he flies combat missions without asking to be relieved from duty, and is thus eligible to be relieved from duty. But if he asks to be relieved from duty, that means he's sane and has to keep flying.
There was only one catch and that was Catch-22, which specified that a concern for one's safety in the face of dangers that were real and immediate was the process of a rational mind. Orr was crazy and could be grounded. All he had to do was ask; and as soon as he did, he would no longer be crazy and would have to fly more missions. Orr would be crazy to fly more missions and sane if he didn't, but if he was sane he had to fly them. If he flew them he was crazy and didn't have to; but if he didn't want to he was sane and had to. Yossarian was moved very deeply by the absolute simplicity of this clause of Catch-22 and let out a respectful whistle.

"That's some catch, that Catch-22," he observed.

"It's the best there is," Doc Daneeka agreed.
See catch (n.).
catch-all (n.): also catchall, 1838, from catch (v.) + all.
catch-up (n.): "a working to overtake a leading rival," by 1971, probably a figurative use from U.S. football in reference to being behind in the score. From verbal phrase catch up, which was used from early 14c. in sense "raise aloft" and from 1855 in sense "overtake;" see catch (v.) + up (adv.).
catcher (n.): "one who catches," in any sense, mid-14c., agent noun from catch (v.).
catching (adj.): 1580s, of diseases, present participle adjective from catch (v.). From 1650s as "captivating." Related: Catchingly.