Source : Webster's Revised Unabridged Dictionary (1913)

Chit \Chit\, Chitty \Chit"ty\, n. [Hind. chi[.t][.t][=i].]
   1. A short letter or note; a written message or memorandum; a
      certificate given to a servant; a pass, or the like.

   2. A signed voucher or memorandum of a small debt, as for
      food and drinks at a club. [India, China, etc.]

Chitty \Chit"ty\, a.
   1. Full of chits or sprouts.

   2. Childish; like a babe. [Obs.]