9 letters · 10 points in Scrabble
noun someone who imparts energy and vitality and spirit to other people
noun a device that supplies electrical energy
originEtymology tree English energise Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English energiser From energise + -er.
Etymology from Wiktionary, CC BY-SA 3.0