acre · medieval Welsh unit of surface area equal to 11664 sq. ft. or about ¹⁄₄ acre
çekim: çoğul erwau
köken: From Proto-Celtic *arwī (compare Breton erv, Cornish erow), from Proto-Indo-European *h₂erh₃-wo- (“plowable”) (compare Old Irish arbor, Latin arvum).
köken: Probably borrowed from Middle English aker, from Old English æcer (“field where crops are grown”), from Proto-West Germanic *akr, otherwise from Old Norse akr; either way from Proto-Germanic *akraz, from Proto-Indo-European *h₂éǵros.
Probably from Old Norse akr reenforced by Old English æcer (“a field, land, that which is sown, sown land, cultivated land; a definite quantity of land, land which a yoke of oxen could plough in a day, an acre, a certain quantity of land, strip of plough-land; crop”). Unit of measurement used only in Normandy and often attested in Norman literature and in texts from this region.