lapstone

From lap +‎ stone.

lapstone (plural lapstones)

1. (archaic or historical) A stone placed on a shoemaker's lap, used to beat leather.
   • 1939, “The Foreman of the Jury”, in The Casket:

     he would jerk away, and pelt upon his lapstone as though he were beating the very soul out of his leather

• “lapstone”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

• Planetos, pleonast, polentas