Source : Webster's Revised Unabridged Dictionary (1913)

Inca \In"ca\, n.
   (a) An emperor or monarch of Peru before, or at the time of,
       the Spanish conquest; any member of this royal dynasty,
       reputed to have been descendants of the sun.
   (b) pl. The people governed by the Incas, now represented by
       the Quichua tribe.

   {Inca dove} (Zo["o]l.), a small dove ({Scardafella inca}),
      native of Arizona, Lower California, and Mexico.