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orpimentum

orpimentum [OF orpiment < auripigmentum] , orpiment, arsenic trisulphide. 1284 pro orpymento empto ad girfalcones ij d. KR Ac 351/11 m. 3; 1290 in j libra de orpiment vj d. Doc. W. Abb. Westm. 184; 1291 pro ~o empto ad opus dictorum falconum KR Ac 352/26 m. 5; 1296 in ij libris iij quarteriis et dim. de orpiment precium libre viij d. de eodem ‥ in ovis ad glayr pro orpyment distemperando Ac. Galley Newcastle 179.

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