anesthetize vs anaesthetise

anesthetize and anaesthetise both are verbs.

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

As verbs, anesthetize and anaesthetise are synonyms defined as:

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

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