cavalieryoudaoicibaDictYouDict[cavalier 词源字典]
cavalier: [16] Etymologically, a cavalier is a ‘horseman’. The word comes via French cavalier from Italian cavaliere, which was derived from Latin caballus ‘horse’, either directly or via late Latin caballārius ‘horseman, rider’. From the beginning in English its connotations were not those of any old horserider, but of a mounted soldier or even a knight, and before the end of the 16th century the more general meaning ‘courtly gentleman’ was establishing itself.

This led in the mid-17th century to its being applied on the one hand to the supporters of Charles I, and on the other as an adjective meaning ‘disdainful’. Italian cavaliere was also the source of cavalleria ‘body of horsesoldiers’, which was borrowed into English in the 16th century, via French cavallerie, as cavalry. (The parallel form routed directly through French rather than via Italian was chivalry.)

=> cavalry, chivalry[cavalier etymology, cavalier origin, 英语词源]
cavalier (n.)youdaoicibaDictYouDict
1580s, from Italian cavalliere "mounted soldier, knight; gentleman serving as a lady's escort," from Late Latin caballarius "horseman," from Vulgar Latin caballus, the common Vulgar Latin word for "horse" (and source of Italian cavallo, French cheval, Spanish caballo, Irish capall, Welsh ceffyl), displacing Latin equus (see equine).

Sense advanced in 17c. to "knight," then "courtly gentleman" (but also, pejoratively, "swaggerer"), which led to the adjectival senses, especially "disdainful" (1650s). Meaning "Royalist adherent of Charles I" is from 1641. Meaning "one who devotes himself solely to attendance on a lady" is from 1817, roughly translating Italian cavaliere-servente. In classical Latin caballus was "work horse, pack horse," sometimes, disdainfully, "hack, nag." "Not a native Lat. word (as the second -a- would show), though the source of the borrowing is uncertain" [Tucker]. Perhaps from some Balkan or Anatolian language, and meaning, originally, "gelding." The same source is thought to have yielded Old Church Slavonic kobyla.
cavalier (adj.)youdaoicibaDictYouDict
"disdainful," 1650s, from cavalier (n.). Earlier it meant "gallant" (1640s). Related: Cavalierly.
disdain (n.)youdaoicibaDictYouDict
mid-14c., desdegne "scorn, contempt," earlier dedeyne "offended dignity" (c. 1300), from Old French desdeigne, from desdeignier (see disdain (v.)). Sometimes in early Modern English shortened to sdain, sdainful. Related: disdainful; disdainfully.
fastidious (adj.)youdaoicibaDictYouDict
mid-15c., "full of pride," from Latin fastidiosus "disdainful, squeamish, exacting," from fastidium "loathing, squeamishness; dislike, aversion; excessive nicety," which is of uncertain origin; perhaps from *fastu-taidiom, a compound of fastus "contempt, arrogance, pride," and taedium "aversion, disgust." Fastus is possibly from PIE *bhars- (1) "projection, bristle, point," on the notion of "prickliness" (Watkins) or "a semantic shift from 'top' to 'haughtiness' which is conceivable, but the u-stem is not attested independently" [de Vaan], who adds that "fastidium would be a tautology." Early use in English was both in passive and active senses. Meaning "squeamish, over-nice" in English emerged 1610s. Related: Fastidiously; fastidiousness.
haughty (adj.)youdaoicibaDictYouDict
"proud and disdainful," 1520s, a redundant extension of haught (q.v.) "high in one's own estimation" by addition of -y (2) on model of might/mighty, naught/naughty, etc. Middle English also had hautif in this sense (mid-15c., from Old French hautif), and hautein "proud, haughty, arrogant; presumptuous" (c. 1300), from Old French hautain. Related: Haughtily.
sniffle (v.)youdaoicibaDictYouDict
1819, frequentative form of sniff (v.). Related: Sniffled; sniffling. The sniffles "runny nose, head cold" is recorded from 1825. Sniffly (1897) tends to refer to physical symptoms, while sniffy (1858) means "scornful, disdainful and disagreeable." Snuffy "annoyed" is from 1670s.
squeamish (adj.)youdaoicibaDictYouDict
late 14c., variant (with -ish) of squoymous "disdainful, fastidious" (early 14c.), from Anglo-French escoymous, which is of unknown origin. Related: Squeamishly; squeamishness.
He was somdel squaymous
Of fartyng, and of speche daungerous
[Chaucer, "Miller's Tale," c. 1386]