anaesthetise vs anesthetize

anaesthetise and anesthetize both are verbs.

Word	Noun	Adjective	Verb	Adverb
anaesthetise	No	No	Yes	No
anesthetize	No	No	Yes	No

As verbs, anaesthetise and anesthetize are synonyms defined as:

Other synonyms of anaesthetise include anaesthetize, anesthetise, put out, put under.

anaesthetise (verb)	anesthetize (verb)
administer an anesthetic drug to	administer an anesthetic drug to