[rook] n [ME, fr. OE hroc; akin to OHG hruoch rook] (bef. 12c): a common Old World gregarious bird (Corvus frugilegus) about the size and color of the related American crow but having a bare patch of skin at the base of the bill
[2]rook vt (ca. 1590): to defraud by cheating or swindling [3]rook n [ME rok, fr. MF roc, fr. Ar rukhkh, fr. Per rukh] (14c): either of two pieces of the same color in a set of chessmen having the power to move along the ranks or files across any number of unoccupied squares--called also castle