The Collaborative International Dictionary of English v.0.48:

Cingalese \Cin`ga*lese"\, n. sing. & pl. [Cf. F. Cingalais.]
   A native or natives of Ceylon descended from its primitive
   inhabitants; also (sing.), the language of the Cingalese. --
   a. Of or pertaining to the Cingalese. [Written also
   Singhalese.]
   [1913 Webster]

   Note: Ceylonese is applied to the inhabitants of the island
         in general.
         [1913 Webster]