/ Dictionary / Index E eponymy: Meaning and Definition of Find definitions for: ep•on•y•my Pronunciation: (u-pon'u-mē), [key] — n. the derivation of names from eponyms. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: eponymy (Thesaurus) eponymous epopee Related Content Daily Word Quiz: loquacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language