Meaning of the Sanskrit Word: rajarse

  rajarse—O great King    Madhya 24.47, Madhya 25.157
  rajarse—O sage amongst the kings    SB 1.17.20
  rajarse—O King (Maharaja Pariksit)    SB 10.8.26
  rajarse—O saintly King    SB 2.1.9

Can't find any compound Sanskrit words containing rajarse.