British spelling vs cross-fertilise

British spelling is a noun but cross-fertilise is not a noun.

Word	Noun	Adjective	Verb	Adverb
British spelling	Yes	No	No	No
cross-fertilise	No	No	Yes	No

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

British spelling (verb)	cross-fertilise (verb)
	cause to undergo cross-fertilization
	undergo cross-fertilization; become fertile