volatileyoudaoicibaDictYouDict[volatile 词源字典]
volatile: see volley
[volatile etymology, volatile origin, 英语词源]
volatile (adj.)youdaoicibaDictYouDict
1590s "fine or light," also "evaporating rapidly" (c. 1600), from Middle French volatile, from Latin volatilis "fleeting, transitory; swift, rapid; flying, winged," from past participle stem of volare "to fly" (see volant). Sense of "readily changing, flighty, fickle" is first recorded 1640s. Volatiles in Middle English meant "birds, butterflies, and other winged creatures" (c. 1300).