yak (n.)youdaoicibaDictYouDict[yak 词源字典]
"wild ox of central Asia," 1795, from Tibetan g-yag "male yak." Attested in French from 1791.[yak etymology, yak origin, 英语词源]
yak (v.)youdaoicibaDictYouDict
"laugh," 1938, variant of yuck (2); "talk idly," 1950, variant of yack. Related: Yakked; yakking.