chastity (n.)youdaoicibaDictYouDict[chastity 词源字典]
c. 1200, chastete, "sexual purity" (as defined by the Church), including but not limited to virginity or celibacy, from Old French chastete "chastity, purity" (12c., Modern French chasteté), from Latin castitatem (nominative castitas) "purity, chastity" from castus (see caste).[chastity etymology, chastity origin, 英语词源]