Source : Webster's Revised Unabridged Dictionary (1913)

More \More\, adv.
   1. In a greater quantity; in or to a greater extent or
      degree.
      (a) With a verb or participle.

                Admiring more The riches of Heaven's pavement.
                                                  --Milton.
      (b) With an adjective or adverb (instead of the suffix
          -er) to form the comparative degree; as, more durable;
          more active; more sweetly.

                Happy here, and more happy hereafter. --Bacon.

   Note: Double comparatives were common among writers of the
         Elizabeth period, and for some time later; as, more
         brighter; more dearer.

               The duke of Milan And his more braver daughter.
                                                  --Shak.

   2. In addition; further; besides; again.

            Yet once more, Oye laurels, and once more, Ye
            myrtles brown, with ivy never sere, I come to pluck
            your berries harsh and crude.         --Milton.

   {More and more}, with continual increase. ``Amon trespassed
      more and more.'' --2 Chron. xxxiii. 23.

   {The more}, to a greater degree; by an added quantity; for a
      reason already specified.

   {The more -- the more}, by how much more -- by so much more.
      ``The more he praised in himself, the more he seems to
      suspect that in very deed it was not in him.'' --Milton.

   {To be no more}, to have ceased to be; as, Cassius is no
      more; Troy is no more.

            Those oracles which set the world in flames, Nor
            ceased to burn till kingdoms were no more. --Byron.

Source : WordNet®

more and more
     adv : advancing in amount or intensity; "she became increasingly
           depressed" [syn: {increasingly}, {progressively}]