ANESTHETIZE
anesthetize, anaesthetize, anesthetise, anaesthetise, put under, put out
(verb) administer an anesthetic drug to; “The patient must be anesthetized before the operation”; “anesthetize the gum before extracting the teeth”
Source: WordNet® 3.1
Verb
anesthetize (third-person singular simple present anesthetizes, present participle anesthetizing, simple past and past participle anesthetized) (American spelling)
(transitive) To administer anesthesia to: to render unfeeling or unconscious through the use of narcotic substances, usually either alcohol or pharmaceutical drugs.
Source: Wiktionary