assert vs asseverate

assert and asseverate both are verbs.

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

As verbs, assert and asseverate are synonyms defined as:

Other synonyms of assert include maintain.

assert (verb)	asseverate (verb)
postulate positively and assertively	state categorically
to declare or affirm solemnly and formally as true
state categorically
insist on having one's opinions and rights recognized