From Proto-Germanic *smeltaną (to melt)—smelting and melting are doublets, one with the Germanic s-prefix.
The process of extracting a metal from its ore by heating and melting.
From Middle Dutch or Middle Low German 'smelten' (to melt), from Proto-Germanic *smeltaną (to melt, to dissolve). Related to Old English 'meltan' (to melt) with an s-prefix common in Germanic languages. Smelting and melting are doublets from the same root. Key roots: *smeltaną (Proto-Germanic: "to melt").