The Collaborative International Dictionary of English v.0.48:

Cemetery \Cem"e*ter*y\, n.; pl. Cemeteries. [L. cemeterium,
   Gr. ? a sleeping chamber, burial place, fr. ? to put to
   sleep.]
   A place or ground set apart for the burial of the dead; a
   graveyard; a churchyard; a necropolis.
   [1913 Webster]