frunium

frunium [cf. DuC] , powdered bark of young oak used in tanning hides. serdones student frunire corea equina et taurina in truncis concavis ‥; corea vero vertunt in ~io, ut cruditas fetida coriorum discedat [gl.: frunire dicitur taner, unde ~ium, G. tan. notandum quod in allumia [? l. allumine] est omne vas solubile indigens ~io. est vero ~ium unum eorum que consolidant vitrum fractum] Garl. Dict. 131; barke, powder for ledyr, ~ium PP; barke duste or wose, ~ium, ptipsana CathA.