The story
- Proto-Celtic*baskis
- Gaulish*baskis
- Latinbacca
- Vulgar Latin*baccinum
- Old Frenchbacin
- Middle Englishbasyn
- English todaybasin
From Middle English basyn, from Old French bacin, from Vulgar Latin *baccinum (“wide bowl”).
Etymology from Wiktionary, CC BY-SA 4.0.