boar (n.)youdaoicibaDictYouDict[boar 词源字典]
Old English bar "boar," from West Germanic *bairaz (cognates: Old Saxon ber, Dutch beer, Old High German ber "a boar"), which is of unknown origin with no cognates outside West Germanic. Applied in Middle English to persons of boar-like character.[boar etymology, boar origin, 英语词源]