1. benefactive - Noun
2. benefactive - Adjective
benefactive (not comparable)
(linguistics) Of or pertaining to the linguistic form or case or the semantic role of the beneficiary of an action. Expressed in English as "on behalf of" or "on one's behalf."
benefactive (plural benefactives)
A term or sentence element that serves a benefactive role or that is inflected for the benefactive case or a similar case (such as the dative case).