köken: From Old French tonel (“barrel”), diminutive of tone (“large barrel”), from Late Latin tunna, from Proto-Celtic *tunna (“hide, skin”). Probably entered through Old Galician-Portuguese or Old Aragonese, where it seems to have been borrowed earlier. Cognate with Galician and Portuguese tonel and Catalan tona.
tun (a large wooden barrel, a vat, a cask) · tun (a traditional unit of liquid volume equal to 0.8–1 m³ depending on the part of Portugal)
çekim: çoğul tonéis
köken: From Old Galician-Portuguese tonel, from Old French tonel, from tone + -el (“-elle: forming diminutives”), from Late Latin tunna (“tun”), from Proto-Celtic *tunna (“hide, skin”). Doublet of tonelada. Cognate with Galician and Spanish tonel and Catalan tona.
köken: Probably of Celtic origin, from Gaulish *tondā, from Proto-Celtic *tondā (“surface, skin”), though Matasovic doubts this, stating that the meanings are too different. Related with Old Irish tonn (“skin”, also “wineskin”). Cognate with English tun, Dutch ton, German Tonne. The Germanic word is usually considered a borrowing from the Latin.
Etimoloji
From Old Galician-Portuguese tonel (13th century, Cantigas de Santa Maria), from Old French tonel, diminutive of tone (“large barrel”), from Late Latin tunna, from Proto-Celtic *tunna (“hide, skin”). Cognate with Spanish and Portuguese tonel and Catalan tona.