addict

fe’l verb

1. To deliver (someone or something) following a judicial decision.
2. To devote (oneself) to a given activity, occupation, thing etc.
3. To bind (a person or thing) to the service of something.
4. To devote or pledge (oneself) to a given person, cause etc.

ot noun

1. A person who is addicted, especially to a harmful drug He is an addict when it comes to chocolate cookies.
2. An adherent or fan (of something)