Source : Webster's Revised Unabridged Dictionary (1913)

Chum \Chum\, n.

   {New chum}, a recent immigrant. [Australia] Chupatty
\Chu*pat"ty\, n.; pl. {-ties}. [Hind. chap[=a]t[=i].]
   A kind of griddlecake of unleavened bread, used among the
   natives of India. [Anglo-Indian]