mongrelise vs British spelling

mongrelise is not a noun while British spelling is a noun.

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

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

mongrelise (verb)	British spelling (verb)
cause to become a mongrel