donor (n.)youdaoicibaDictYouDict[donor 词源字典]
mid-15c., from Anglo-French donour, Old French doneur (Modern French donneur), from Latin donatorem (nominative donator) "giver, donor," agent noun from past participle stem of donare "give as a gift" (see donation). Of blood, from 1910; of organs or tissues, from 1918.[donor etymology, donor origin, 英语词源]