British spelling vs demilitarise

British spelling is a noun but demilitarise is not a noun.

Word	Noun	Adjective	Verb	Adverb
British spelling	Yes	No	No	No
demilitarise	No	No	Yes	No

British spelling (noun)	demilitarise (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')

British spelling (verb)	demilitarise (verb)
	do away with the military organization and potential of
	remove offensive capability from