An archaic or dialectal term, possibly referring to refuse or waste material from iron-working; exact meaning uncertain.
Possibly related to 'ferrous' materials or '-ash' suffix indicating residue; alternatively from dialectal or regional usage without clear documented etymology.
Ferrash is one of those words that hints at the industrial life of medieval Europe—if it means iron-working waste, then it represents all the slag and scraps that accumulated in smithies and foundries, the byproducts of metalworking civilization.
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