Source : Webster's Revised Unabridged Dictionary (1913)

Readmit \Re`ad*mit"\, v. t.
   To admit again; to give entrance or access to again.

         Whose ear is ever open, and his eye Gracious to readmit
         the suppliant.                           --Milton.

Source : WordNet®

readmit
     v 1: admit anew; "The refugee was readmitted into his home
          country"
     2: admit again or anew; "After paying a penalty, the player was
        readmitted"