mitigation vs mitigate

mitigation is a noun but mitigate is not a noun.

Word	Noun	Adjective	Verb	Adverb
mitigation	Yes	No	No	No
mitigate	No	No	Yes	No

mitigation (noun)	mitigate (noun)
to act in such a way as to cause an offense to seem less serious
the action of lessening in severity or intensity
a partial excuse to mitigate censure; an attempt to represent an offense as less serious than it appears by showing mitigating circumstances

mitigation (verb)	mitigate (verb)
	to temper
	lessen or to try to lessen the seriousness or extent of