The Collaborative International Dictionary of English v.0.48:

Aborigines \Ab`o*rig"i*nes\ (-r[i^]j"[i^]*n[=e]z), n. pl. [L.
   Aborigines; ab + origo, especially the first inhabitants of
   Latium, those who originally (ab origine) inhabited Latium or
   Italy. See Origin.]
   1. The earliest known inhabitants of a country; native races.
      [1913 Webster]

   2. The original fauna and flora of a geographical area
      [1913 Webster]