/ˈædɪkt/ (noun), /əˈdɪkt/ (verb)
[noun] A person who cannot stop doing or using something harmful, such as a drug, even when they want to stop. The word can also be used informally to describe someone who loves something very much, like a 'coffee addict'.
Roman courts once used 'addict' to mean a person legally sentenced to serve someone as a slave.
The word 'addict' travels to us from the Roman legal world, where it carried a meaning far darker and more literal than we might expect. The Latin verb 'addicere' was a formal courtroom term meaning 'to award' or 'to hand over by judicial decree.' It was built from two parts: 'ad-', meaning 'to' or 'toward,' and 'dicere', meaning 'to say' or 'to pronounce.' When a Roman judge 'addicted' a debtor to a creditor, he was pronouncing a sentence — declaring, in the eyes of the law, that one human being now belonged to another.
The person on the receiving end of this verdict was called an 'addictus.' This was someone who had been formally surrendered — handed over to work off a debt through their labour, their freedom stripped away by official speech. The connection between this ancient legal slavery and our modern understanding of addiction is not merely poetic. It is remarkably precise. To be addicted, in both senses, is to be owned by something outside yourself, to have your will surrendered to another power.
The word entered English in the 16th century, but at first it wore a more neutral face. Early English writers used 'addict' simply to mean 'devoted to' or 'dedicated to' a habit or activity — not necessarily a bad one. A person might be 'addicted to study' or 'addicted to virtue,' much as we might say someone is 'devoted to' something today. The Latin 'addicere' passed through no major intermediate language on its way to English; educated writers of the Renaissance period borrowed directly from Latin, as was common practice when reaching for precise or elevated vocabulary.
Over the following centuries, the word began its slow drift toward darker territory. By the 17th and 18th centuries, 'addict' was increasingly paired with vices — gambling, drink, and idleness. The neutral sense faded, and the shadow of compulsion grew longer. The idea that a habit could seize control of a person, that the will itself could be enslaved, began to feel less like a metaphor and more like a medical observation. By the 19th century, as opium and later alcohol became subjects of serious public concern, 'addict' hardened into the clinical and social category we recognise today.
What is striking is how faithfully the word kept its original soul across two and a half thousand years. The Roman 'addictus' had no legal power over his own body; the modern addict, in the understanding of medicine and neuroscience, similarly loses a degree of voluntary control. The Latin root 'dicere' — 'to speak' or 'to declare' — also gave English 'diction', 'dictate', 'predict' (from Latin 'praedicere' → English 'predict'), and 'verdict' (from Latin 'veredictum', meaning 'truly spoken' → Old French 'verdict' → English 'verdict'). In every case, the core idea is of a powerful, binding word — a word that decides things. An addict, at root, is someone upon whom a sentence has been pronounced.