8 letters · 10 points in Scrabble
noun the ritual washing of a priest's hands or of sacred vessels
originFrom Middle English ablucioun (“cleansing of impurities”), from Old French ablution, and its source, Late Latin ablūtiō (“a washing away”), from abluō (“wash away”), from ab- (“away”) + lavō (“wash”).
Etymology from Wiktionary, CC BY-SA 3.0