Meaning of the Sanskrit Word: prajapatinam

  prajapatinam—of all the forefathers of living entities    SB 2.6.35
  prajapatinam—of the Prajapatis    SB 4.3.2
  prajapatinam—of all the Prajapatis    SB 8.17.28

Can't find any compound Sanskrit words containing prajapatinam.