inheritor n. + Add to list US //ˌɪnˈhɛɹətɝ// UK //ɪnhˈɛɹɪtɐ// in·her·i·tor SynonymsEtymology Synonyms heirheritorOriginMEenheriter→ENinheritor From Middle English enheriter, enheritour. Displaced Old English ierfenuma. By surface analysis, inherit + -or.