Wordnet 3.0
VERB (2)
1. 
 paint again; 
- Example: "He repainted the same scenery many times during his life"2. 
 paint again; 
- Example: "He repainted the wall after the child smeared it with tomato sauce"
The Collaborative International Dictionary of English v.0.48:
Repaint \Re*paint"\ (r?-p?nt"), v. t.
   To paint anew or again; as, to repaint a house; to repaint
   the ground of a picture.
   [1913 Webster]
WordNet (r) 3.0 (2006):
repaint
    v 1: paint again; "He repainted the same scenery many times
         during his life"
    2: paint again; "He repainted the wall after the child smeared
       it with tomato sauce"