rejuvenate
    v 1: cause (a stream or river) to erode, as by an uplift of the
         land
    2: develop youthful topographical features; "the land
       rejuvenated"
    3: make younger or more youthful; "The contact with his
       grandchildren rejuvenated him" [ant: age]
    4: return to life; get or give new life or energy; "The week at
       the spa restored me" [syn: regenerate, restore,
       rejuvenate]
    5: become young again; "The old man rejuvenated when he became a
       grandfather"

Rejuvenate \Re*ju"ve*nate\ (r?-j?"v?-n?t), v. t. [Pref. re- re-
   + L. juventis young, youthful.]
   To render young again.
   [1913 Webster]