7 letters · 12 points in Scrabble
noun foolish gibberish
verb to talk foolishly
originFrom Middle English bletheren, bloderen, from Old Norse blaðra (“to speak inarticulately, talk nonsense”). Cognate with Scots blether, bladder, bledder (“to blather”), dialectal German bladdern (“to talk nonsense, blather”), Norwegian bladra (“to babble, speak imperfectly”), Icelandic blaðra (“to twaddle”).
Etymology from Wiktionary, CC BY-SA 3.0