Source : Webster's Revised Unabridged Dictionary (1913)

Kingly \King"ly\, adv.
   In a kingly or kinglike manner. --Shak.

         Low bowed the rest; he, kingly, did but nod. --Pore.

   Note: Although this citation, one from Paradise Lost, and one
         from Shakespeare's ll4th Sonnet are given by
         lexicographers as examples of adverbial use, it is by
         no means clear that the word is not an adjective in
         each instance.

Kingly \King"ly\, a. [Compar. {Kinglier}; superl. {Kingliest}.]
   Belonging to, suitable to, or becoming, a king;
   characteristic of, resembling, a king; directed or
   administered by a king; monarchical; royal; sovereign; regal;
   august; noble; grand. ``Kingly magnificence.'' --Sir P.
   Sidney. ``A kingly government.'' --Swift. ``The kingly
   couch.'' --Shak.

         The kingliest kings are crowned with thorn. --G.
                                                  Massey.

         Leave kingly backs to cope with kingly cares. --Cowper.

   Syn: Regal; royal; monarchical; imperial; august; sovereign;
        noble; splendid.

   Usage: {Kingly}, {Regal}. Kingly is Anglo-Saxon, and refers
          especially to the character of a king; regal is Latin,
          and now relates more to his office. The former is
          chiefly used of dispositions, feelings, and purposes
          which are kinglike; as, kingly sentiments; kingly
          condescension; `` a kingly heart for enterprises.''
          --Sir P. Sidney. The latter is oftener applied to
          external state, pomp, etc.; as, regal state, regal
          title, etc. This distinction is not observed by our
          early writers, but is gaining ground.

Source : WordNet®

kingly
     adj : having the rank of or resembling or befitting a king;
           "symbolizing kingly power"; "the murder of his kingly
           guest" [syn: {kinglike}]