'anesthetized' originates from Greek, specifically the word 'anaisthēsia,' where 'an-' meant 'without' and 'aisthēsis' meant 'sensation.'

'anaisthēsia' was adopted into modern English as 'anesthesia,' and the verb form 'anesthetize' was later created, with 'anesthetized' as its past tense and past participle.

Initially, it meant 'to make insensible to pain,' and this meaning has remained consistent in modern usage.