Other forms: enthusiasms
Enthusiasm is keen and lively interest in something. Wanting to do it, and showing that you do.
It takes for. The word is warm and almost always a compliment, though British English has a way of using it drily, since describing somebody's response as lacking enthusiasm means they hated it. The Greek root means possessed by a god, which is a startling origin for such an everyday word. The adjective enthusiastic is far commoner than the noun, and an enthusiast is somebody devoted to a hobby.
1nounenthusiasmEager interest and enjoyment.
“His enthusiasm for the project was infectious.”
Enthusiasm is having a god inside you. Greek enthousiasmos is built from en, in, and theos, god, and it described divine possession long before it described ordinary keenness.
Ancient Greek
ἐνθουσιασμός
Latin
enthusiasmus
Middle French
enthousiasme
English, today
enthusiasm
Built from
First attested from 1603, from Middle French enthousiasme, from Latin enthusiasmus, from Ancient Greek ἐνθουσιασμός, from ἐν (“in”) + θεός (“god”) + οὐσία (“essence”).
Etymology from Wiktionary, CC BY-SA