What is "epinikion"

The epinikion or epinicion (plural epinikia or epinicia, Greek , from epi-, "on," + nikê, "victory") is a genre of occasional poetry also known in English as a victory ode. In ancient Greece, the epinikion most often took the form of a choral lyric, commissioned for and performed at the celebration of an athletic victory in the Panhellenic Games and sometimes in honor of a victory in war. Major poets in the genre are Simonides, Bacchylides, and Pindar.