Artificial intelligent assistant

copple-stone

copple-stone Obs.
  [cf. coppling ppl. a. 3; also cobble-stone, coggle-stone.]

a 1728 Woodward (cited by Johnson), Copple-stones are lumps and fragments of stone or marble, broke from the adjacent cliffs, rounded by being bowled and tumbled to and again by the action of the water.

Oxford English Dictionary

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