9 letters · 12 points in Scrabble
adjective possessing or exerting or displaying energy
adjective working hard to promote an enterprise
originFrom New Latin energeticus (16th c.), or its source, Ancient Greek ἐνεργητικός (energētikós), from ἐνεργέω (energéō, “to be active”), from ἐνεργός (energós, “active”). By surface analysis, energy + -etic.
Etymology from Wiktionary, CC BY-SA 3.0