7 letters · 15 points in Scrabble
verb make clear and (more) comprehensible
verb make clear by removing impurities or solids, as by heating
originFrom Middle English clarifien, from Old French clarifiier, from Latin clārificō, clārificāre; clārus (“clear”) + faciō, facere (“make”). Semantically clear + -ify.
Etymology from Wiktionary, CC BY-SA 3.0