eponymy noun. [ɪ'pɒnɪmi, ɛ-] M19.
[Greek epōnumia derived or significant name, formed as EPONYM: see -Y³.]
1. Eponymic nomenclature; the practice of explaining names of peoples, places, etc., by referring them to the name of a historical or mythical person. M19.

2. The year of office of an Assyrian eponym. L19.

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