The story
- Proto-Indo-European · derived from*gwost-
- Proto-Celtic · derived from*bostā“palm, fist”
- Gaulish · derived from*bostyā“handful”
- Old French · derived fromboissel
- Middle English · inherited frombusshel
- English todaybushel
From Middle English busshel, from Old French boissel, from boisse, a grain measure based on Gaulish *bostyā (“handful”), from Proto-Celtic *bostā (“palm, fist”) (compare Breton boz (“hollow of the hand”), Old Irish bas), from Proto-Indo-European *gwost-, *gwosdʰ- (“branch”).
Etymology from Wiktionary, CC BY-SA 4.0.