The Collaborative International Dictionary of English v.0.48:

Jewish \Jew"ish\, a.
   1. Of or pertaining to the Jews or Hebrews; characteristic of
      or resembling the Jews or their customs; Israelitish. --
      Jew"ish*ly, adv. -- Jew"ish*ness, n.
      [1913 Webster]

   2. Of, pertaining to, or characteristic of Judaism.
      [PJC]