Source : Webster's Revised Unabridged Dictionary (1913)

Subjugate \Sub"ju*gate\, v. t. [imp. & p. p. {Subjugated}; p.
   pr. & vb. n. {Subjugating}.] [L. subjugatus, p. p. of
   subjugare to subjugate; sub under + jugum a yoke. See
   {Yoke}.]
   To subdue, and bring under the yoke of power or dominion; to
   conquer by force, and compel to submit to the government or
   absolute control of another; to vanquish.

         He subjugated a king, and called him his ``vassal.''
                                                  --Baker.

   Syn: To conquer; subdue; overcome. See {Conquer}.

Source : WordNet®

subjugated
     adj : reduced to submission; "subjugated peoples"