Idiosyncrasy
Idiosyncrasy , noun
[Greek {not transcribed}; 'i`dios proper, peculiar + {not transcribed} a mixing together, from {not transcribed} to mix together; {not transcribed} with + {not transcribed} to mix: compare French idiosyncrasie. See Idiom, and Crasis.]
A peculiarity of physical or mental constitution or temperament; a characteristic belonging to, and distinguishing, an individual; characteristic susceptibility; idiocrasy; eccentricity.
The individual mind... takes its tone from the idiosyncrasies of the body.