The Collaborative International Dictionary of English v.0.48:

Impartment \Im*part"ment\, n.
   The act of imparting, or that which is imparted,
   communicated, or disclosed. [R.]
   [1913 Webster]

         It beckons you to go away with it,
         As if it some impartment did desire
         To you alone.                            --Shak.
   [1913 Webster]