Source : Webster's Revised Unabridged Dictionary (1913)

Ripen \Rip"en\, v. t.
   1. To cause to mature; to make ripe; as, the warm days
      ripened the corn.

   2. To mature; to fit or prepare; to bring to perfection; as,
      to ripen the judgment.

            When faith and love, which parted from thee never,
            Had ripined thy iust soul to dwell with God.
                                                  --Milton.

Ripen \Rip"en\, v. i. [imp. & p. p. {Ripened};p. pr. & vb. n.
   {Ripening}.]
   1. To grow ripe; to become mature, as grain, fruit, flowers,
      and the like; as, grapes ripen in the sun.

   2. To approach or come to perfection.

Source : WordNet®

ripen
     v 1: cause to ripen or develop fully; "The sun ripens the fruit";
          "Age matures a good wine" [syn: {mature}]
     2: grow ripe; "The plums ripen in July"