Artificial intelligent assistant

cogging-brick

cogging-brick
  [from likeness of the work to the cogs of a wheel or ratchet.]
  See quot.

1703 T. N. City & C. Purch. 39 Cogging-bricks, a kind of Bricks..in use in some parts of Sussex to make their Toothing, or Indented Work under the Copeing of Walls.

Oxford English Dictionary

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