5 letters · 7 points in Scrabble
verb make dim or indistinct
adjective tired to the point of exhaustion
originFrom Middle English bleren, from Old English *blǣran, related to West Frisian blearje (“to bleat, shout”), Dutch bleren, blaren (“to bellow, bleat”), German Low German blaren, blarren (“to blare, howl, shriek”), German plärren (“to howl, shriek, blare”).
Etymology from Wiktionary, CC BY-SA 3.0