habituation vs habituate

habituation is a noun but habituate is not a noun.

Word	Noun	Adjective	Verb	Adverb
habituation	Yes	No	No	No
habituate	No	No	Yes	No

habituation (noun)	habituate (noun)
a general accommodation to unchanging environmental conditions
being abnormally tolerant to and dependent on something that is psychologically or physically habit-forming (especially alcohol or narcotic drugs)

habituation (verb)	habituate (verb)
	make psychologically or physically used (to something)
	take or consume (regularly or habitually)