Idiosyncrasy
Pronunciation : Id`i*o*syn"cra*sy
Part of Speech : n.;
Etymology : [Gr. idiosyncrasie. See Idiom, and Crasis.]
Definition : Defn: 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. I. Taylor.
pl. Idiosyncrasies.
Source : Webster's Unabridged Dictionary, 1913