Source : Webster's Revised Unabridged Dictionary (1913)

Eskimo \Es"ki*mo\, n.; pl. {Eskimos}. [Originally applied by the
   Algonquins to the Northern Indians, and meaning eaters of raw
   flesh.] (Ethnol.)
   One of a peculiar race inhabiting Arctic America and
   Greenland. In many respects the Eskimos resemble the
   Mongolian race. [Written also {Esquimau}.]

   {Eskimo dog} (Zo["o]l.), one of a breed of large and powerful
      dogs used by the Eskimos to draw sledges. It closely
      resembles the gray wolf, with which it is often crossed.
      Eskimo dog

Esquimau \Es"qui*mau\, n.; pl. {Esquimaux}. [F.]
   Same as {Eskimo}.

         It is . . . an error to suppose that where an Esquimau
         can live, a civilized man can live also. --McClintock.

Source : WordNet®

Esquimau
     n 1: a member of a people inhabiting the Arctic (northern Canada
          or Greenland or Alaska or eastern Siberia); the
          Algonquians called them Eskimo (`eaters of raw flesh')
          but they call themselves the Inuit (`the people') [syn:
          {Eskimo}, {Inuit}]
     2: the language spoken by the Eskimo people [syn: {Eskimo}]