Source : Webster's Revised Unabridged Dictionary (1913)

Depose \De*pose"\, v. t. [imp. & p. p. {Deposed}; p. pr. & vb.
   n. {Deposing}.][FF. d['e]poser, in the sense of L. deponere
   to put down; but from pref. d['e]- (L. de) + poser to place.
   See {Pose}, {Pause}.]
   1. To lay down; to divest one's self of; to lay aside. [Obs.]

            Thus when the state one Edward did depose, A greater
            Edward in his room arose.             --Dryden.

   2. To let fall; to deposit. [Obs.]

            Additional mud deposed upon it.       --Woodward.

   3. To remove from a throne or other high station; to
      dethrone; to divest or deprive of office.

            A tyrant over his subjects, and therefore worthy to
            be deposed.                           --Prynne.

   4. To testify under oath; to bear testimony to; -- now
      usually said of bearing testimony which is officially
      written down for future use. --Abbott.

            To depose the yearly rent or valuation of lands.
                                                  --Bacon.

   5. To put under oath. [Obs.]

            Depose him in the justice of his cause. --Shak.

Depose \De*pose"\, v. i.
   To bear witness; to testify under oath; to make deposition.

         Then, seeing't was he that made you to despose, Your
         oath, my lord, is vain and frivolous.    --Shak.

Source : WordNet®

depose
     v 1: force to leave (an office) [syn: {force out}]
     2: make a deposition; declare under oath [syn: {swear}, {depone}]