vitiligo (n.)youdaoicibaDictYouDict[vitiligo 词源字典]
1650s, from Latin vitiglio "a kind of cutaneous eruption, tetter" (Celsus), perhaps with an original sense of "blemish," from PIE *wi-tu-, from root *wei- (3) "vice, fault, guilt" (see vice (n.1)).[vitiligo etymology, vitiligo origin, 英语词源]