beneficiary

The story

1. French · derived frombénéficiaire“beneficiary”
2. Latin · derived frombeneficiarius“enjoying a favor, granted a privilege”
3. English todaybeneficiary

From Latin beneficiarius (“enjoying a favor, granted a privilege”) from beneficium (“benefit”), perhaps via or influenced by French bénéficiaire (“beneficiary”). Indirectly, by way of the etymology of the Latin word beneficium, the English word beneficiary ultimately has the same origin as the English word benefactor, its near antonym.