The Collaborative International Dictionary of English v.0.48:
Eponymic \Ep`o*nym"ic\, a. Same as Eponymous. [1913 Webster] Tablets . . . which bear eponymic dates. --I. Taylor (The Alphabet). [1913 Webster]WordNet (r) 3.0 (2006):
eponymic adj 1: being or relating to or bearing the name of an eponym [syn: eponymous, eponymic]