marginalise vs marginalisation

marginalise is not a noun while marginalisation is a noun.

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

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

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