Wordnet 3.0
VERB (1)
1. 
 cause to feel extremely joyful or happy; 
- Example: "the economic growth overjoyed the German industry"
The Collaborative International Dictionary of English v.0.48:
Overjoy \O`ver*joy"\, v. t.
   To make excessively joyful; to gratify extremely.
   [1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Overjoy \O"ver*joy`\, n.
   Excessive joy; transport.
   [1913 Webster]
WordNet (r) 3.0 (2006):
overjoy
    v 1: cause to feel extremely joyful or happy; "the economic
         growth overjoyed the German industry"