overshadow in WordNet English dictionary

1. be greater in significance than
   "the tragedy overshadowed the couple's happiness"
   overshadow  dominate  eclipse 
   
2. make appear small by comparison
   "This year's debt dwarfs that of last year"
   shadow  overshadow  dwarf 
   
3. cast a shadow upon
   "The tall tree overshadowed the house"
   overshadow