The Mill-rind or Fer-de-moline is, of course, as its name implies, the iron from the centre of a grindstone.
What, after all, was it that kept my nose to the grindstone?
A few pencils and gravers, a vise bench, and a grindstone no longer make an engraving establishment.
Derek had jumped down to rescue her and struck his head against a grindstone.
Turning the grindstone, running the washing machine and churning are part of a country boy's daily life.
And between 'em our noses are going to be held right down on the grindstone.
But if we've got to turn the grindstone, it would be mighty nice to have some of the little dears to lend a hand.
The grindstone was soon in motion; the sparks were flying off in showers.
I perceived a grindstone in the corner of the room, which the leniency of the authorities permitted them to have and to use.
Sparks fly from a grindstone when you are sharpening a knife.
early 13c. "millstone," from grind (v.) in sense of "sharpen" + stone (n.); meaning "revolving stone disc used for sharpening, etc." is from c.1400. Phrase nose to the grindstone in use by 1530s; originally to get control of another and treat him harshly:
This Text holdeth their noses so hard to the grindstone, that it clean disfigureth their Faces. [John Frith, "Mirror to know Thyself," 1532]The main modern (reflective) sense of "work hard" is from 1828.