prevalence vs prevail

prevalence is a noun but prevail is not a noun.

Word	Noun	Adjective	Verb	Adverb
prevalence	Yes	No	No	No
prevail	No	No	Yes	No

prevalence (noun)	prevail (noun)
the quality of prevailing generally; being widespread
a superiority in numbers or amount
(epidemiology) the ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the population

prevalence (verb)	prevail (verb)
	use persuasion successfully
	prove superior
	continue to exist
	be valid, applicable, or true
	be larger in number, quantity, power, status or importance