Source : Webster's Revised Unabridged Dictionary (1913)

Psychopathy \Psy*chop"a*thy\, n. [Psycho- + Gr. ?, ?.] (Med.)
   Mental disease. See {Psychosis}, 2. -- {Psy`cho*path"ic}, a.
   -- {Psy*chop"a*thist}, n.

Source : WordNet®

psychopathy
     n : any disease of the mind; the psychological state of someone
         who has emotional or behavioral problems serious enough
         to require psychiatric intervention [syn: {mental illness},
          {mental disease}] [ant: {mental health}]