assertable vs assert

assertable is an adjective but assert is not an adjective.

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

assertable (adjective)	assert (adjective)
capable of being affirmed or asserted

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