epigon vs copycat

epigon and copycat both are nouns.

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

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

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

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

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