The Collaborative International Dictionary of English v.0.48:

Inurn \In*urn"\, v. t. [imp. & p. p. Inurned; p. pr. & vb. n.
   Inurning.]
   To put in an urn, as the ashes of the dead; hence, to bury;
   to intomb.
   [1913 Webster]

         The sepulcher
         Wherein we saw thee quietly inurned.     --Shak.
   [1913 Webster]