Meaning of the Sanskrit Word: bharatarsabha

  bharatarṣabha—O chief amongst the descendants of Bharata    Bg 3.41, Bg 14.12
  bharatarṣabha—O lord of the Bhāratas.    Bg 7.11
  bharatarṣabha—O great one amongst the descendants of Bharata.    Bg 7.16
  bharatarṣabha—O best of the Bhāratas.    Bg 8.23
  bharatarṣabha—O chief of the Bhāratas.    Bg 13.27
  bharatarṣabha—O best amongst the Bhāratas    Bg 18.36-37

Can't find any compound Sanskrit words containing bharatarsabha.