"hanging flap or piece after a hole is punched in paper," a word unknown to most people until the 2000 U.S. presidential election (when the outcome hinged on partially punched paper ballots in some Florida counties), attested by 1930, of unknown origin. Perhaps it is not a coincidence that the word is identical to an English dialectal variant of chat, meaning "a dry twig; dry fragments among food."
late 14c., kitoun, "the young of a domesticated cat," probably from an Anglo-French variant of Old French chaton, chitoun (Old North French caton) "little cat," a diminutive of chat "cat," from Late Latin cattus (see cat (n.)). In playful use, "a young girl, a sweetheart," from 1870. As a verb, "bring forth kittens," late 15c. To have kittens "lose one's composure" is from 1908.
intransitive, "talk informally, chat in an easy way," 1929, according to OED, popularized c. 1965 in African-American vernacular, possibly first in Caribbean English and from British slang rap (v.) "to say, utter" (by 1879), originally "to utter sharply, speak out" (1540s), ultimately a sense-branch of rap (v.1).
As a noun in this sense from 1898. Meaning "to perform rap music" is recorded by 1979. Related: Rapped; rapping.
early 13c., devisen, "to form, fashion;" c. 1300, "to plan, contrive, think or study out, elaborate in the mind," from Old French deviser "dispose in portions, arrange, plan, contrive" (in Modern French, "to chat, gossip"), from Vulgar Latin *divisare, frequentative of Latin dividere "to divide" (see divide (v.)).
Sense of "give, assign, or transmit by will" is from late 14c. in English, from Old French, via the notion of "to arrange a division." As a noun, "act of bequeathing by will" (1540s), also "a will or testament." Compare device. Related: Devised; devising.
"talk artlessly and childishly," 1530s, a frequentative (or diminutive) of prate (q.v.); also see -el (2) and (3). Related: Prattled; prattling. The noun, "inconsequential or childish talk," is attested from 1550s.
Prattle is generally harmless, if not pleasant, as the prattle of a child, or of a simple-minded person ; prating now generally suggests the idea of boasting or talking above one's knowledge ; chat is easy conversation upon light and agreeable subjects ... ; chatter is incessant or abundant talk, seeming rather foolish and sounding pretty much alike ; babble or babbling is talk that is foolish to inaneness, as that of the drunkard (Prov. xxiii. 29) .... [Century Dictionary, 1895]
1845, "mistress of a castle or household," from French châtelaine "a female castellan; wife of a castellan; mistress of a castle or country house;" fem. of châtelain, from Old French chastelain "owner and lord of a castle, nobleman; keeper of a castle" (Modern French châtelaine), from chastel "castle," from Latin castellum "castle" (see castle (n.)). In fashion, as a type of ornamental belt, from 1851; it is supposed to resemble a chain of keys such as a chatelaine would wear.
early 13c., chateren "to twitter, make quick, shrill sounds" (of birds), "to gossip, talk idly or thoughtlessly" (of persons), earlier cheateren, chiteren, of echoic origin. Compare Dutch koeteren "jabber," Danish kvidre "twitter, chirp." Of teeth, "make a rattling noise from cold or fright," mid-15c. Related: Chattered; chattering.
Phrase chattering class was in use by 1893, with perhaps an isolated instance from 1843:
Such was the most interesting side of the fatal event to that idle chattering class of London life to whom the collision of heaven and earth were important only as affording matter for "news!" [Catherine Grace F. Gore ("Mrs. Gore"), "The Banker's Wife," 1843]
"large stately residence in the country, manor-house," c. 1739, from French château, from Old French chastel (12c.), from Latin castellum "castle" (see castle (n.)).