donor (n.)

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," from donum "gift," from PIE *donum "gift," from root *do- "to give." Of blood, from 1910; of organs or tissues, from 1918.

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