sanitisation vs sanitise

sanitisation is a noun but sanitise is not a noun.

Word	Noun	Adjective	Verb	Adverb
sanitisation	Yes	No	No	No
sanitise	No	No	Yes	No

sanitisation (noun)	sanitise (noun)
making something sanitary (free of germs) as by sterilizing

sanitisation (verb)	sanitise (verb)
	make less offensive or more acceptable by removing objectionable features
	make sanitary by cleaning or sterilizing