Source : Webster's Revised Unabridged Dictionary (1913)

Redound \Re*dound"\ (r?*dound"), v. i. [imp. & p. p.
   {Redounded}; p. pr. & vb. n. {Redounding}.] [F. redonder, L.
   redundare; pref. red-, re-, re- + undare to rise in waves or
   surges, fr. unda a wave. See {Undulate}, and cf.
   {Redundant}.]
   1. To roll back, as a wave or flood; to be sent or driven
      back; to flow back, as a consequence or effect; to
      conduce; to contribute; to result.

            The evil, soon Driven back, redounded as a flood on
            those From whom it sprung.            --Milton.

            The honor done to our religion ultimately redounds
            to God, the author of it.             --Rogers.

            both . . . will devour great quantities of paper,
            there will no small use redound from them to that
            manufacture.                          --Addison.

   2. To be in excess; to remain over and above; to be
      redundant; to overflow.

            For every dram of honey therein found, A pound of
            gall doth over it redound.            --Spenser.

Redound \Re*dound"\, n.
   1. The coming back, as of consequence or effect; result;
      return; requital.

            We give you welcome; not without redound Of use and
            glory to yourselves ye come.          --Tennyson.

   2. Rebound; reverberation. [R.] --Codrington.

Source : WordNet®

redound
     v 1: be excessive in quantity
     2: be deflected; "His actions redound on his parents"
     3: be added; "Everything he does redounds to himself"
     4: have an effect for good or ill; "Her efforts will redound to
        the general good"