calcifurnium

calcifurnium [cf. OF chaufor] , lime-kiln. 1279 in mclxvj quarteriis carbonis marini emptis ad chauffornia cretam et calcem ardencia KR Ac 467/7/4; 1284 in sex cuvis novis emptis ad calcem cariandum et x tribulis emptis ad chauff[ornia] Ib. 9.