encomium vs eulogy

encomium and eulogy both are nouns.

Word	Noun	Adjective	Verb	Adverb
encomium	Yes	No	No	No
eulogy	Yes	No	No	No

As nouns, encomium and eulogy are synonyms defined as:

Other synonyms of encomium include paean, panegyric, pean.

encomium (noun)	eulogy (noun)
a formal expression of praise	a formal expression of praise for someone who has died recently
	a formal expression of praise