predicate vs interrelate

predicate is a noun but interrelate is not a noun.

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

As verbs, interrelate is a hypernym of predicate; that is, interrelate is a word with a broader meaning than predicate:

Other hypernyms of predicate include relate.

predicate (noun)	interrelate (noun)
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

predicate (verb)	interrelate (verb)
affirm or declare as an attribute or quality of	place into a mutual relationship
involve as a necessary condition of consequence; as in logic	be in a relationship with
make the (grammatical) predicate in a proposition