anesthetise vs British spelling

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

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

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

anesthetise (verb)	British spelling (verb)
administer an anesthetic drug to