predicator vs predicate

predicator and predicate both are nouns.

Word	Noun	Adjective	Verb	Adverb
predicator	Yes	No	No	No
predicate	Yes	No	Yes	No

predicator (noun)	predicate (noun)
an expression that predicates	one of the two main constituents of a sentence; the predicate contains the verb and its complements
	(logic) what is predicated of the subject of a proposition; the second term in a proposition is predicated of the first term by means of the copula

predicator (verb)	predicate (verb)
	affirm or declare as an attribute or quality of
	involve as a necessary condition of consequence; as in logic
	make the (grammatical) predicate in a proposition