anaesthetise vs anaesthetize

anaesthetise and anaesthetize both are verbs.

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

As verbs, anaesthetise and anaesthetize are synonyms defined as:

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

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