asseverate vs aver

asseverate and aver both are verbs.

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

As verbs, aver is a hyponym of asseverate; that is, aver is a word with a more specific, narrower meaning than asseverate:

Other hyponyms of asseverate include allege, say, predicate, proclaim.

asseverate (verb)	aver (verb)
state categorically	to declare or affirm solemnly and formally as true
	report or maintain