The Collaborative International Dictionary of English v.0.48:

Jury \Ju"ry\, n.; pl. Juries. [OF. jur['e]e an assize, fr.
   jurer to swear, L. jurare, jurari; akin to jus, juris, right,
   law. See Just,a., and cf. Jurat, Abjure.]
   [1913 Webster]
   1. (Law) A body of people, selected according to law,
      impaneled and sworn to inquire into and try any matter of
      fact, and to render their true verdict according to the
      evidence legally adduced. In criminal trials the number of
      such persons is usually twelve, but in civil cases and in
      grand juries it may different. See Grand jury under
      Grand, and Inquest.
      [1913 Webster +PJC]

            The jury, passing on the prisoner's life. --Shak.
      [1913 Webster]

   2. A committee for determining relative merit or awarding
      prizes at an exhibition or competition; as, the art jury
      gave him the first prize.
      [1913 Webster]

   Jury of inquest, a coroner's jury. See Inquest.
      [1913 Webster]