The Collaborative International Dictionary of English v.0.48:

Omen \O"men\, v. t. [imp. & p. p. Omened; p. pr. & vb. n.
   Omening.]
   To divine or to foreshow by signs or portents; to have omens
   or premonitions regarding; to predict; to augur; as, to omen
   ill of an enterprise.
   [1913 Webster]

         The yet unknown verdict, of which, however, all omened
         the tragical contents.                   --Sir W.
                                                  Scott.
   [1913 Webster]