stagnation vs stagnate

stagnation is a noun but stagnate is not a noun.

Word	Noun	Adjective	Verb	Adverb
stagnation	Yes	No	No	No
stagnate	No	No	Yes	No

stagnation (noun)	stagnate (noun)
a state of inactivity (in business or art etc)
inactivity of liquids; being stagnant; standing still; without current or circulation

stagnation (verb)	stagnate (verb)
	be idle; exist in a changeless situation
	cease to flow; stand without moving
	stand still
	cause to stagnate