The story
- Latin · derived fromcanistrum
- Middle English · inherited fromcanustyr“basket”
- English todaycanister
From Middle English canustyr (“basket”), a borrowing from Latin canistrum. Doublet of canaster and knaster. * (metal receptacle): Through influence of unrelated can. * (projectile): Short for canister shot, so called for its casing.
Etymology from Wiktionary, CC BY-SA 4.0.