Source : Webster's Revised Unabridged Dictionary (1913)

Prorogue \Pro*rogue"\, v. t. [imp. & p. p. {Prorogued}; p. pr. &
   vb. n. {Proroguing}.] [F. proroger, L. prorogare, prorogatum;
   pro forward + rogare to ask, to ask one for his opinion or
   vote, or about a law. See {Rogation}.]
   1. To protract; to prolong; to extend. [Obs.]

            He prorogued his government.          --Dryden.

   2. To defer; to delay; to postpone; as, to proroguedeath; to
      prorogue a marriage. --Shak.

   3. To end the session of a parliament by an order of the
      sovereign, thus deferring its business.

            Parliament was prorogued to [meet at] Westminster.
                                                  --Bp. Hall.

            The Parliament was again prorogued to a distant day.
                                                  --Macaulay.

   Syn: To adjourn; postpone; defer. See {Adjourn}.