Word Study
sandiver
CIDE DICTIONARY
sandiver, n. [Perh. fr. OF. saïn grease, fat + de of + verre glass (cf. Saim), or fr. F. sel de verre sandiver.].
A whitish substance which is cast up, as a scum, from the materials of glass in fusion, and, floating on the top, is skimmed off; -- called also glass gall . [1913 Webster]
OXFORD DICTIONARY
sandiver, n. liquid scum formed in glass-making.
Etymology
ME app. f. F suin de verre exhalation of glass f. suer to sweat
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