The Collaborative International Dictionary of English v.0.48:

Thievery \Thiev"er*y\, n.
   1. The practice of stealing; theft; thievishness.
      [1913 Webster]

            Among the Spartans, thievery was a practice morally
            good and honest.                      --South.
      [1913 Webster]

   2. That which is stolen. [Obs.] --Shak.
      [1913 Webster]

WordNet (r) 3.0 (2006):

thievery
    n 1: the act of taking something from someone unlawfully; "the
         thieving is awful at Kennedy International" [syn:
         larceny, theft, thievery, thieving, stealing]

Moby Thesaurus II by Grady Ward, 1.0:

33 Moby Thesaurus words for "thievery":
   abstraction, annexation, appropriation, boosting, conversion,
   conveyance, embezzlement, filching, fraud, graft, larceny,
   liberation, lift, lifting, pilferage, pilfering, pinch, pinching,
   poaching, purloining, scrounging, shoplifting, snatching,
   sneak thievery, snitching, steal, stealage, stealing, swindle,
   swiping, theft, thieving, touch