fuegian

from The Century Dictionary.

• Belonging to Fuegia, or Tierra del Fuego (“Land of Fire,” so named from the numerous fires seen there on its discovery by Magellan in 1520), a group of islands off the southern extremity of South America, including Cape Horn, inhabited by a low race of savages.
• noun A native or an inhabitant of Fuegia, or Tierra del Fuego.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Of or pertaining to Terra del Fuego.