predominance vs predominate

predominance is a noun but predominate is not a noun.

Word	Noun	Adjective	Verb	Adverb
predominance	Yes	No	No	No
predominate	No	Yes	Yes	No

predominance (noun)	predominate (noun)
the quality of being more noticeable than anything else
the state of being predominant over others

predominance (adjective)	predominate (adjective)
	having superior power and influence

predominance (verb)	predominate (verb)
	be larger in number, quantity, power, status or importance
	appear very large or occupy a commanding position