emulator vs epigon

emulator and epigon both are nouns.

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

As nouns, epigon is a hyponym of emulator; that is, epigon is a word with a more specific, narrower meaning than emulator:

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

Other hyponyms of emulator include epigone, parrot.

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