Source : Webster's Revised Unabridged Dictionary (1913)

Expatriate \Ex*pa"tri*ate\, v. t. [imp. & p. p. {Expatriated};
   p. pr. & vb. n. {Expatriating}.] [LL. expatriatus, p. p. of
   expatriare; L. ex out + patria fatherland, native land, fr.
   pater father. See {Patriot}.]
   1. To banish; to drive or force (a person) from his own
      country; to make an exile of.

            The expatriated landed interest of France. --Burke.

   2. Reflexively, as To expatriate one's self: To withdraw from
      one's native country; to renounce the rights and
      liabilities of citizenship where one is born, and become a
      citizen of another country.

Source : WordNet®

expatriate
     n : voluntarily absent from home or country [syn: {exile}]
     v 1: expel from a country; "The poet was exiled because he signed
          a letter protesting the government's actions" [syn: {deport},
           {exile}] [ant: {repatriate}]
     2: move away from one's native country and adopt a new
        residence abroad