INTERCOMMONING

from The Collaborative International Dictionary of English v.0.48

Intercommon \In`ter*com"mon\, v. t. [imp. & p. p.
   {Intercommoned}; p. pr. & vb. n. {Intercommoning}.] [OF.
   entrecommuner. See {Inter-}, and {Common}, and cf.
   {Intercommune}.]
   [1913 Webster]
   1. To share with others; to participate; especially, to eat
      at the same table. [Obs.] --Bacon.
      [1913 Webster]

   2. (O. Eng. Law) To graze cattle promiscuously in the commons
      of each other, as the inhabitants of adjoining townships,
      manors, etc.
      [1913 Webster]

from Bouvier's Law Dictionary, Revised 6th Ed (1856)

INTERCOMMONING, Eng. law. Where the commons of two manors lie together, and 
the inhabitants, or those having a right of common of both, have time out of 
mind depastured their cattle, without any distinction, this is called 
intercommoning.