crampo

crampo, ~onus [OF crampon < Dutch] , crampon, bent metal bar (esp. for clamping masonry). b setting of gem. 1295 pro ‥ circulis ferreis, cranpon’ et gumphis in murum ‥ molendini ponendis KR Ac 462/14 m. 1 (cf. ib. m. 2: ad fabricand’ ‥ ~ones pro ‥ molendino); 1298 in xijxx ~onibus pro muro lapideo circa posternam (Ib. 7/6) Doc. Scot. II 320; 1320 in ij craumponis emptis, ij d. ob. KR Ac 482/1 m. 4d.; 1327 in xlviij ~onis pro claustro, iiij s. vj d. (Comp. Pitanc. Norwic.) Arch. J. XXXII 474; 1327 in empcione iij petrarum ferri pro ~onibus ad caminum ‥ firmandum muro lapideo Ac. Sheriffs 14/12; 1337 in ~onibus faciendis pro novo opere cementar’ de iij peciis ferri domini, pro pecia iij d. Sacr. Ely II 96; 1388 pro ‥ ij gro[ssis] crampon’ pro sustentacione cujusdam pipe plumbee magne aule, ij viroll’ cum ij gojeons pro j croudewayn’ ‥, iiijxxxvij craunpon’ ferr’ pro ‥ ymaginibus ‥ firmandis KR Ac 473/2 m. 4.  b 1315 anulus cum saphiro nigro in iiij ~onibus ex omni parte discooperto Invent. Ch. Ch. 71.