wen (n.)youdaoicibaDictYouDict[wen 词源字典]
Old English wenn "a wen, tumor, wart," from Proto-Germanic *wanja- "a swelling" (cognates: Middle Low German wene, Dutch wen, dialectal German Wenne), from PIE *wen- (2) "to beat, wound" (see wound (n.)).[wen etymology, wen origin, 英语词源]