blather

The story

1. Old Norse · derived fromblaðra“to speak inarticulately, talk nonsense”
2. Middle English · inherited frombletheren
3. English todayblather

From 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”).