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heritor

noun

Latin root: hērēditārium Wiktionary

Origin

From Middle English heriter, from Anglo-Norman heriter, Old French heritier, earlier eretier, eritier, from Late Latin hērēditārium (from the adjective hērēditārius (“hereditary”)), which took the place of hērēs (“heir”). In the 16th century conformed to agent nouns in -our, -or. By surface analysis, herit + -or.

From Wiktionary, via Kaikki.org (CC BY-SA)