rejoice
verb /rɪˈdʒɔɪs/
  /rɪˈdʒɔɪs/
[intransitive, transitive] (formal)Verb Forms
Idioms | present simple I / you / we / they rejoice |  /rɪˈdʒɔɪs/  /rɪˈdʒɔɪs/ | 
| he / she / it rejoices |  /rɪˈdʒɔɪsɪz/  /rɪˈdʒɔɪsɪz/ | 
| past simple rejoiced |  /rɪˈdʒɔɪst/  /rɪˈdʒɔɪst/ | 
| past participle rejoiced |  /rɪˈdʒɔɪst/  /rɪˈdʒɔɪst/ | 
| -ing form rejoicing |  /rɪˈdʒɔɪsɪŋ/  /rɪˈdʒɔɪsɪŋ/ | 
- to express great happiness about something- When the war ended, people finally had cause to rejoice.
- rejoice at/in/over something The motor industry is rejoicing at the cut in car tax.
- rejoice to do something They rejoiced to see their son well again.
- rejoice that… I rejoice that justice has prevailed.
 Word OriginMiddle English (in the sense ‘cause joy to’): from Old French rejoiss-, lengthened stem of rejoir, from re- (expressing intensive force) + joir ‘experience joy’.
Idioms 
rejoice in the name of… 
- (British English, humorous) to have a name that sounds funny- He rejoiced in the name of Owen Owen.