Artificial intelligent assistant

counter-calk

counter-ˈcalk, v. Obs. rare—1.
  [counter- 1: cf. calk v.3, and F. contrecalquer to trace in reverse.]
  trans. To trace as counterparts.

1662 Evelyn Chalcogr. 47 Vago de Capi did things..in a new way of Charo Scuro, or Mezzo Tinto, by the help of two plates, exactly counter-calked, one serving for the shadow.

Oxford English Dictionary

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