rook

rook is defined in Webster's Unabridged Dictionary (1913) with 3 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.(Zoöl.) A European bird (Corvus frugilegus) resembling the crow, but smaller. It is black, with purple and violet reflections. The base of the beak and the region around it are covered with a rough, scabrous skin, which in old birds is whitish. It is gregarious in its habits. The name is also applied to related Asiatic species. The rook . . . should be treated as the farmer's friend. Pennant.
  2. 2.A trickish, rapacious fellow; a cheat; a sharper. Wycherley.
  3. 3.To cheat; to defraud by cheating. "A band of rooking officials." Milton.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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