1529, adj., "delivered, devoted," from L.
addictus, pp. of
addicere "deliver, yield, devote," from
ad- "to" +
dicere "say, declare" (see
diction), but also "adjudge, allot." Modern sense is really
self-addicted "to give over or award (oneself) to someone or some practice" (1607). The noun is first recorded 1909, in reference to morphine.
Addicted is from 1914.
Addiction in modern (narcotics, etc.) sense is first attested 1906, in ref. to opium (there is an isolated instance from 1779, with ref. to tobacco).
[uh-dik-tid] 
