unnature

from The Collaborative International Dictionary of English v.0.48

Unnature \Un*na"ture\, v. t. [1st pref. un- + nature.]
   To change the nature of; to invest with a different or
   contrary nature. [Obs.]
   [1913 Webster]

         A right heavenly nature, indeed, as if were unnaturing
         them, doth so bridle them [the elements]. --Sir P.
                                                  Sidney.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Unnature \Un*na"ture\, n. [Pref. un- not + nature.]
   The contrary of nature; that which is unnatural. [R.]
   [1913 Webster]

         So as to be rather unnature, after all, than nature.
                                                  --H. Bushnell.
   [1913 Webster]