Meaning of the Sanskrit Word: bhrgunam

  bhṛgūṇām—of the disciples of Bhṛgu Muni like Śukrācārya    SB 6.7.24
  bhṛgūṇām—under the guidance of the brāhmaṇas born in the Bhṛgu dynasty    SB 8.18.20

Can't find any compound Sanskrit words containing bhrgunam.