British spelling vs polemise

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

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

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

British spelling (verb)	polemise (verb)
	engage in a controversy