The Collaborative International Dictionary of English v.0.48:

Transmew \Trans*mew"\, v. t. & i. [F. transmuer, L. transmutare.
   See Transmute.]
   To transmute; to transform; to metamorphose. [Archaic]
   --Chaucer. Spenser.
   [1913 Webster]

         To transmew thyself from a holy hermit into a sinful
         forester.                                --Sir W.
                                                  Scott.
   [1913 Webster]