From addict + -ion; compare (Latin) addictio ("an adjudging, an award").

• IPA: /əˈdɪkʃən/

addiction

1. (medicine) A state that is characterized by compulsive drug use or compulsive engagement in rewarding behavior, despite negative consequences.
   • 2019, Thy Art is Murder, Chemical Christ:

     Do your lethal addictions to self-prescriptions numb the ache of the darkest days?

2. The state of being addicted; devotion; inclination.
3. A habit or practice that damages, jeopardizes or shortens one's life but when ceased causes trauma.
4. A pathological relationship to mood altering experience that has life damaging consequences.
   • 1599 (date written), William Shakespeare, “The Life of Henry the Fift”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC ↗, [Act I, scene i]:

     His addiction was to courses vain.

• French: dépendance, addiction
• German: Abhängigkeit, Sucht
• Italian: dipendenza, assuefazione
• Portuguese: vício, adicção
• Russian: зави́симость
• Spanish: adicción, vicio, dependencia

• French: dépendance
• German: Abhängigkeit
• Italian: dipendenza
• Portuguese: adicção
• Russian: зави́симость
• Spanish: adicción