v.
  - feel or show great joy. 
▸archaic cause joy to.
 - 
(rejoice in)
 Brit. have (a specified strange or inappropriate name):
 the guard rejoiced in the name of Blossom.
 
 
  Derivative
  
    - rejoicer n.
  - rejoicing n. & adj.
  - rejoicingly adv.
 
   
  Etymology
  ME: from OFr. rejoiss-, lengthened stem of rejoir, from re- + joir ‘experience joy’.