Meaning of the Sanskrit Word: prakrtau

  prakṛtau—in the material nature    SB 3.28.43
  prakṛtau—within this material world    SB 7.2.41
  prākṛtau—two ordinary human children    SB 10.11.39-40
  prākṛtau—ordinary boys    Adi 5.138

Can't find any compound Sanskrit words containing prakrtau.