quietyoudaoicibaDictgodict[quiet 词源字典]
quiet: [14] The Latin noun quiēs meant ‘quiet’ (it came from a prehistoric Indo-European base *qwi- ‘rest’, which also produced English while and the final syllable of tranquil). From it was derived the verb quiēscere ‘be still’ (source of English quiescent [17]). Its past participle quiētus has given English quiet (and its Siamese twin coy), quit, and quite, not to mention the derived forms acquit and requite.
=> acquit, coy, quit, quite, requite, tranquil, while[quiet etymology, quiet origin, 英语词源]
quiet (adj.)youdaoicibaDictgodict
late 14c., "peaceable, at rest, restful, tranquil," from Old French quiet and directly from Latin quietus "calm, at rest, free from exertion," from quies (genitive quietis) "rest" (see quiet (n.)). As an adverb from 1570s. Related: Quietly; quietness.
quiet (n.)youdaoicibaDictgodict
c. 1300, "freedom from disturbance or conflict; calm, stillness," from Old French quiete "rest, repose, tranquility" and directly from Latin quies (genitive quietis) "a lying still, rest, repose, peace," from PIE root *kweie- (2) "to rest, be quiet" (cognates: Old Persian shiyati-, Avestan shaiti- "well-being;" Avestan shyata- "happy;" Gothic hveila, Old English hwil "space of time;" see while (n.)). Late 14c. as "inactivity, rest, repose."
quiet (v.)youdaoicibaDictgodict
late 14c., "subdue, lessen," from quiet (adj.) and in part from Latin quietare. From mid-15c. as "to make silent, cause to be quiet;" intransitive sense of "become quiet, be silent" is from 1791. Related: Quieted; quieting.