The Collaborative International Dictionary of English v.0.48:

Inhesion \In*he"sion\, n. [L. inhaesio. See Inhere.]
   The state of existing, of being inherent, in something;
   inherence. --A. Baxter.
   [1913 Webster]

         Constant inhesion and habitual abode.    --South.
   [1913 Webster]