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grindle-coke

grindle-coke, -colk dial.
  [See next and colk1.]
  A worn-out grindstone.

1831 J. Holland Manuf. Metal I. 291 A razor, being considerably concave on the sides, is wrought on a mere grindle coke, as it is called. 1847 Halliwell, Grindle-coke, a worn⁓down grindstone, sometimes used as a stool in the cottages of the poor. (North.) 1888 Sheffield Gloss., Grindel-colke.

Oxford English Dictionary

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