preponderate vs preponderance

preponderate is not a noun while preponderance is a noun.

Word	Noun	Adjective	Verb	Adverb
preponderate	No	No	Yes	No
preponderance	Yes	No	No	No

preponderate (noun)	preponderance (noun)
	a superiority in numbers or amount
	exceeding in heaviness; having greater weight
	superiority in power or influence

preponderate (verb)	preponderance (verb)
weigh more heavily