British spelling vs opalise

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

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

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

British spelling (verb)	opalise (verb)
	replace or convert into opal
	make opalescent