risible (adj.)youdaoicibaDictYouDict[risible 词源字典]
1550s, "given to laughter," from Middle French risible (14c.) and directly from Late Latin risibilis "laughable, able to laugh," from Latin risus, past participle of ridere "to laugh." Meaning "capable of exciting laughter, comical" is from 1727.[risible etymology, risible origin, 英语词源]