The Collaborative International Dictionary of English v.0.48:

Hockey \Hock"ey\, n. [From Hook, n.]
   1. A game in which two parties of players, armed with sticks
      curved or hooked at the end, attempt to drive any small
      object (as a ball or a bit of wood) toward opposite goals.
      [1913 Webster]

   2. The stick used by the players. [Written also hookey and
      hawkey.]
      [1913 Webster]

WordNet (r) 3.0 (2006):

hockey
    n 1: a game resembling ice hockey that is played on an open
         field; two opposing teams use curved sticks try to drive a
         ball into the opponents' net [syn: field hockey,
         hockey]
    2: a game played on an ice rink by two opposing teams of six
       skaters each who try to knock a flat round puck into the
       opponents' goal with angled sticks [syn: ice hockey,
       hockey, hockey game]