The story
- Old English · inherited frombīwist“sustenance, food, provision, necessities”
- Middle English · inherited frombiwist
- English todaybewist
From Middle English biwist, biwest, from Old English bīwist (“sustenance, food, provision, necessities”), equivalent to be- + wist (“being”), or by- + wist (“being”). More at be-, was.
Etymology from Wiktionary, CC BY-SA 4.0.