grindstone

n.

US //ˈɡɹaɪndˌstoʊn// UK //ɡɹˈaɪndstəʊn// grind·stone

Origin

From Middle English grind-ston, grindistan, (also as grindel-ston), equivalent to grind + stone. Cognate with Scots grindstane.

Idioms1 entry

01
nose to the grindstone
Used to form idioms meaning "to force someone to work hard or to focus intensely upon their work".

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