The Collaborative International Dictionary of English v.0.48:

Bribery \Brib"er*y\, n.; pl. Briberies. [OE. brybery
   rascality, OF. briberie. See Bribe, n.]
   1. Robbery; extortion. [Obs.]
      [1913 Webster]

   2. The act or practice of giving or taking bribes; the act of
      influencing the official or political action of another by
      corrupt inducements.
      [1913 Webster]

   Bribery oath, an oath taken by a person that he has not
      been bribed as to voting. [Eng.]
      [1913 Webster]

WordNet (r) 3.0 (2006):

bribery
    n 1: the practice of offering something (usually money) in order
         to gain an illicit advantage [syn: bribery, graft]