Source : Webster's Revised Unabridged Dictionary (1913)

Revert \Re*vert"\, v. t. [imp. & p. p. {Reverted}; p. pr. & vb.
   n. {Reverting}.] [L. revertere, reversum; pref. re- re- +
   vertere to turn: cf. OF. revertir. See {Verse}, and cf.
   {Reverse}.]
   1. To turn back, or to the contrary; to reverse.

            Till happy chance revert the cruel scence. --Prior.

            The tumbling stream . . . Reverted, plays in
            undulating flow.                      --Thomson.

   2. To throw back; to reflect; to reverberate.

   3. (Chem.) To change back. See {Revert}, v. i.

   {To revert a series} (Alg.), to treat a series, as y = a + bx
      + cx^{2} + etc., where one variable y is expressed in
      powers of a second variable x, so as to find therefrom the
      second variable x, expressed in a series arranged in
      powers of y.