What is the greek word for enthusiasm?

The Greek Word for enthusiasm is "ενθουσιασμός" (enthousiasmos), derived from "εν" (en), meaning "in," and "θεός" (theos), meaning "god." The term originally referred to being inspired or possessed by a divine influence, reflecting a sense of fervor and passion. In modern usage, it conveys a strong excitement or eagerness about something.