epos vs poetry

epos and poetry both are nouns.

Word	Noun	Adjective	Verb	Adverb
epos	Yes	No	No	No
poetry	Yes	No	No	No

As nouns, poetry is a hypernym of epos; that is, poetry is a word with a broader meaning than epos:

epos: a body of poetry that conveys the traditions of a society by treating some epic theme
poetry: literature in metrical form

Other hypernyms of epos include poesy, verse.

epos (noun)	poetry (noun)
a long narrative poem telling of a hero's deeds	literature in metrical form
a body of poetry that conveys the traditions of a society by treating some epic theme	any communication resembling poetry in beauty or the evocation of feeling