A group of coarsely ground grain residues or the gritty particles used in various industrial or agricultural processes.
From Old French 'gravier,' related to 'grave' (sand or gravel). The term emerged in Middle English for the byproducts of grain milling.
Graviers is such an obscure word that it barely survives in English dictionaries, yet it represents the minutiae of pre-industrial life—the specific waste products that medieval millers would sell to farmers as bedding for animals.
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