Source : Webster's Revised Unabridged Dictionary (1913)

Coffin \Cof"fin\, v. t. [imp. & p. p. {Coffined}; p. pr. & vb.
   n. {Coffining}.]
   To inclose in, or as in, a coffin.

         Would'st thou have laughed, had I come coffined home?
                                                  --Shak.

         Devotion is not coffined in a cell.      --John Hall
                                                  (1646).