15 letters · 19 points in Scrabble
noun (Christianity) a church festival held in commemoration of the Transfiguration of Jesus
noun (New Testament) the sudden emanation of radiance from the person of Jesus
noun a striking change in appearance or character or circumstances
originFrom Middle English transfiguracioun, from Old French transfiguracion, Anglo-Norman transfiguraciun, and Latin transfigūrātio.
Etymology from Wiktionary, CC BY-SA 3.0