addicted (adj.)

1530s, "delivered over" by judicial sentence (as a debtor to his creditors, a sense from Roman law); past-participle adjective from addict (v.). Sense of "dependent" (1560s) is reflexive, "self-addicted," from the notion of "give over or award (oneself) to someone or some practice;" specialization to narcotics dependency is from c. 1910. Earlier English adjective was simply addict "delivered, devoted" (1520s).