marginalisation vs marginalise

marginalisation is a noun but marginalise is not a noun.

Word	Noun	Adjective	Verb	Adverb
marginalisation	Yes	No	No	No
marginalise	No	No	Yes	No

marginalisation (noun)	marginalise (noun)
the social process of becoming or being made marginal (especially as a group within the larger society)

marginalisation (verb)	marginalise (verb)
	relegate to a lower or outer edge, as of specific groups of people