'narcotic' originates from Greek, specifically the word 'narkotikos,' where 'narkē' meant 'numbness' or 'stupor.'

'narkotikos' transformed into the Latin word 'narcoticus,' and eventually became the modern English word 'narcotic.'

Initially, it meant 'inducing numbness or stupor,' but over time it evolved into its current meaning of 'a drug affecting mood or behavior.'