emerge vs egress

emerge is not a noun while egress is a noun.

Word	Noun	Adjective	Verb	Adverb
emerge	No	No	Yes	No
egress	Yes	No	Yes	No

As verbs, emerge and egress are synonyms defined as:

Other synonyms of emerge include come forth, come out, go forth, issue.

emerge (noun)	egress (noun)
	the act of coming (or going) out; becoming apparent
	(astronomy) the reappearance of a celestial body after an eclipse
	the becoming visible

emerge (verb)	egress (verb)
come out into view, as from concealment	come out of
become known or apparent
come out of
come up to the surface of or rise
happen or occur as a result of something