witty (adj.)youdaoicibaDictYouDict[witty 词源字典]
Old English wittig "clever, wise, sagacious; in one's right mind;" see wit (n.) "intellect" + -y (2). Meaning "possessing sparkling wit" is recorded from 1580s. Related: Wittily; wittiness.[witty etymology, witty origin, 英语词源]