Meaning of the Sanskrit Word: bhagina

  bhagina—nephew    Adi 17.48
  bhagina—nephew (the son of my sister).    Adi 17.149
  bhagina—the nephew    Adi 17.150
  bhagina—nephew    Antya 2.37
  bhagina—the sister's son    Antya 12.34

Can't find any compound Sanskrit words containing bhagina.