avow vs verify

avow and verify both are verbs.

Word	Noun	Adjective	Verb	Adverb
avow	No	No	Yes	No
verify	No	No	Yes	No

As verbs, avow and verify are synonyms defined as:

Other synonyms of avow include affirm, assert, aver, swan, swear.

avow (verb)	verify (verb)
to declare or affirm solemnly and formally as true	confirm the truth of
admit openly and bluntly; make no bones about	to declare or affirm solemnly and formally as true
	attach or append a legal verification to (a pleading or petition)
	check or regulate (a scientific experiment) by conducting a parallel experiment or comparing with another standard