disadvantage (n.)youdaoicibaDictYouDict[disadvantage 词源字典]
late 14c., disavauntage, from Old French desavantage (13c.), from des- (see dis-) + avantage (see advantage).[disadvantage etymology, disadvantage origin, 英语词源]
disadvantage (v.)youdaoicibaDictYouDict
1530s, from disadvantage (n.). Related: Disadvantaged; disadvantaging.