enantiopathy

from The Collaborative International Dictionary of English v.0.48

Enantiopathy \E*nan`ti*op"a*thy\, n. [Gr. ? of contrary
   properties or affections; 'enanti`os opposite + ? suffering,
   affection, fr. ?, ?, to suffer.]
   1. An opposite passion or affection. --Sir W. Hamilton.
      [1913 Webster]

   2. (Med.) Allopathy; -- a term used by followers of
      Hahnemann, or homeopathists.
      [1913 Webster]