accuse vs accusative

accuse is not a noun while accusative is a noun.

Word	Noun	Adjective	Verb	Adverb
accuse	No	No	Yes	No
accusative	Yes	Yes	No	No

accuse (noun)	accusative (noun)
	the case of nouns serving as the direct object of a verb

accuse (adjective)	accusative (adjective)
	serving as or indicating the object of a verb or of certain prepositions and used for certain other purposes
	containing or expressing accusation

accuse (verb)	accusative (verb)
bring an accusation against; level a charge against
blame for, make a claim of wrongdoing or misbehavior against