enthusiast
/ɪnˈθjuːzɪæst/noun
1- a person who is highly interested in a particular activity or subject爱好者, 热衷者：
a sports car enthusiast.
赛车爱好者。
1.1
- archaic, derogatory a person of intense and visionary Christian views〈古, 贬〉基督教狂热分子。
词源
early 17th cent. (denoting a person believing that he or she is divinely inspired)： from French enthousiaste or ecclesiastical Latin enthusiastes 'member of a heretical sect', from Greek enthousiastēs 'person inspired by a god', from the adjective enthous （see ENTHUSIASM）.