10 letters · 15 points in Scrabble
noun a feeling of excitement
noun overflowing with eager enjoyment or approval
noun a lively interest
originFirst attested from 1603, from Middle French enthousiasme, from Late Latin enthusiasmus, from Ancient Greek ἐνθουσιασμός (enthousiasmós), from ἐν (en, “in”) + θεός (theós, “god”) + οὐσία (ousía, “essence”).
Etymology from Wiktionary, CC BY-SA 3.0