Source : Webster's Revised Unabridged Dictionary (1913)

Etherealize \E*the"re*al*ize\, v. t.
   1. To convert into ether, or into subtile fluid; to saturate
      with ether.

   2. To render ethereal or spiritlike.

            Etherealized, moreover, by spiritual communications
            with the other world.                 --Hawthorne.

Source : WordNet®

etherealize
     v : make ethereal [syn: {etherialise}]