köken: Borrowed from Medieval Latin narcōticum (“narcotic”, neuter singular), from Ancient Greek ναρκωτικός (narkōtikós), from ναρκόω (narkóō, “to numb”).
narcotics, illegal drugs · other substances (or other things) perceived as being like illegal drugs, in having a strong psychological effect and/or being harmful or the like · a drug (something addictive)
köken: Borrowed from Spanish narcótico, from Ancient Greek ναρκωτικός (narkōtikós).
Etimoloji
From Dutch narcotica, plural of narcoticum, from Medieval Latin narcōticum, from Ancient Greek ναρκόω (narkóō, “Ι benumb”), from νάρκη (nárkē, “numbness, torpor”).