Source : Webster's Revised Unabridged Dictionary (1913)

Compellation \Com`pel*la"tion\, n. [L. compellatio, fr.
   compellare to accost, fr. compellere. See {Compel}.]
   Style of address or salutation; an appellation.
   ``Metaphorical compellations.'' --Milton.

         He useth this endearing compellation, ``My little
         children.''                              --Bp.
                                                  Beveridge.

         The peculiar compellation of the kings in France is by
         ``Sire,'' which is nothing else but father. --Sir W.
                                                  Temple.