Addiction

The state of being addicted; devotion; inclination.

(Roman law) a formal award by a magistrate of a thing or person to another person (as the award of a debtor to their creditor); a surrender to a master; "under Roman law, addiction was the justification for slavery"

an abnormally strong craving

being abnormally tolerant to and dependent on something that is psychologically or physically habit-forming (especially alcohol or narcotic drugs)