The Collaborative International Dictionary of English v.0.48:

Roke \Roke\, n. [See Reek.]
   1. Mist; smoke; damp [Prov. Eng.] [Written also roak,
      rook, and rouk.]
      [1913 Webster]

   2. A vein of ore. [Pov.Eng.] --Halliwell.
      [1913 Webster] Rokeage

The Collaborative International Dictionary of English v.0.48:

Rook \Rook\, n. [AS. hr[=o]c; akin to OHG. hruoh, ruoh, ruoho,
   Icel. hr[=o]kr, Sw. roka, Dan. raage; cf. Goth. hrukjan to
   crow.]
   1. (Zool.) 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.
      [1913 Webster]

            The rook . . . should be treated as the farmer's
            friend.                               --Pennant.
      [1913 Webster]

   2. A trickish, rapacious fellow; a cheat; a sharper.
      --Wycherley.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Rook \Rook\, v. t. & i. [imp. & p. p. Rooked; p. pr. & vb. n.
   Rooking.]
   To cheat; to defraud by cheating. "A band of rooking
   officials." --Milton.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Rook \Rook\ (r[oo^]k), n.
   Mist; fog. See Roke. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Rook \Rook\, v. i.
   To squat; to ruck. [Obs.] --Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Rook \Rook\, n. [F. roc (cf. Sp. roque), fr. Per. & Ar. rokh, or
   rukh, the rook or castle at chess, also the bird roc (in this
   sense perhaps a different word); cf. Hind. rath a war
   chariot, the castle at chess, Skr. ratha a car, a war car.
   Cf. Roll.] (Chess)
   One of the four pieces placed on the corner squares of the
   board; a castle.
   [1913 Webster]

WordNet (r) 3.0 (2006):

rook
    n 1: (chess) the piece that can move any number of unoccupied
         squares in a direction parallel to the sides of the
         chessboard [syn: castle, rook]
    2: common gregarious Old World bird about the size and color of
       the American crow [syn: rook, Corvus frugilegus]
    v 1: deprive of by deceit; "He swindled me out of my
         inheritance"; "She defrauded the customers who trusted
         her"; "the cashier gypped me when he gave me too little
         change" [syn: victimize, swindle, rook, goldbrick,
         nobble, diddle, bunco, defraud, scam, mulct,
         gyp, gip, hornswoggle, short-change, con]

Moby Thesaurus II by Grady Ward, 1.0:

60 Moby Thesaurus words for "rook":
   beat, beguile of, bilk, bishop, bleed, bunco, burn, castle, cheat,
   chessman, chisel, chouse, chouse out of, cog, cog the dice, con,
   cozen, crib, defraud, diddle, do in, do out of, euchre, finagle,
   flam, fleece, flimflam, fob, fudge, gouge, gull, gyp, have, hocus,
   hocus-pocus, king, knight, man, milk, mulct, pack the deal, pawn,
   piece, pigeon, practice fraud upon, queen, scam, screw,
   sell gold bricks, shave, shortchange, stack the cards, stick,
   sting, sweat, swindle, take a dive, thimblerig, throw a fight,
   victimize