British spelling vs bastardise

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

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

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

British spelling (verb)	bastardise (verb)
	declare a child to be illegitimate
	change something so that its value declines; for example, art forms