aver vs affirm

aver and affirm both are verbs.

Word	Noun	Adjective	Verb	Adverb
aver	No	No	Yes	No
affirm	No	No	Yes	No

As verbs, aver and affirm are synonyms defined as:

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

aver (verb)	affirm (verb)
to declare or affirm solemnly and formally as true	establish or strengthen as with new evidence or facts
report or maintain	to declare or affirm solemnly and formally as true
	say yes to