re·joice 
/rɪˈʤoɪs/ verb
re·joic·es; re·joiced; re·joic·ing /rɪˈʤoɪs/ verb [no obj] : to feel or show that you are very happy about something
▪ We all rejoiced over/about/in/at our friend's good luck. ▪ The fans rejoiced when their team finally won the World Series. = The fans rejoiced in their team's World Series victory.
▪ We all rejoiced over/about/in/at our friend's good luck. ▪ The fans rejoiced when their team finally won the World Series. = The fans rejoiced in their team's World Series victory.
rejoice in the name/title of
Brit, humorous : to have a name/title that makes people laugh or smile
▪ a woman who rejoices in the name of Eugenia Whelpbottom
▪ a woman who rejoices in the name of Eugenia Whelpbottom
— rejoicing noun [noncount]
▪ There was much rejoicing when the soldiers returned home.
▪ There was much rejoicing when the soldiers returned home.
