badinage (n.)youdaoicibaDictYouDict[badinage 词源字典]
"light railery," 1650s, from French badinage "playfulness, jesting," from badiner (v.) "to jest, joke," from badin "silly, jesting," from Old Provençal badar "to yawn, gape," from Late Latin badare "to gape," from *bat-, the root of abash.[badinage etymology, badinage origin, 英语词源]