epigone vs copycat

epigone and copycat both are nouns.

Word	Noun	Adjective	Verb	Adverb
epigone	Yes	No	No	No
copycat	Yes	No	No	No

As nouns, copycat is a hypernym of epigone; that is, copycat is a word with a broader meaning than epigone:

epigone: an inferior imitator of some distinguished writer, artist, or musician
copycat: someone who copies the words or behavior of another

Other hypernyms of epigone include ape, aper, emulator, imitator.

epigone (noun)	copycat (noun)
an inferior imitator of some distinguished writer, artist, or musician	someone who copies the words or behavior of another