Source : Webster's Revised Unabridged Dictionary (1913)

Adjure \Ad*jure"\, v. t. [imp. & p. p. {Adjured}; p. pr. & vb.
   n. {Adjuring}]. [L. adjurare, adjurdium, to swear to; later,
   to adjure: cf. F. adjurer. See {Jury}.]
   To charge, bind, or command, solemnly, as if under oath, or
   under the penalty of a curse; to appeal to in the most solemn
   or impressive manner; to entreat earnestly.

         Joshua adjured them at that time, saying, Cursed be the
         man before the Lord, that riseth up and buildeth this
         city Jericho.                            --Josh. vi.
                                                  26.

         The high priest . . . said . . . I adjure thee by the
         living God, that thou tell us whether thou be the
         Christ.                                  --Matt. xxvi.
                                                  63.

         The commissioners adjured them not to let pass so
         favorable an opportunity of securing their liberties.
                                                  --Marshall.

Source : WordNet®

adjure
     v 1: ask for or request earnestly; "The prophet bid all people to
          become good persons" [syn: {bid}, {beseech}, {entreat},
          {press}, {conjure}]
     2: command solemnly