Meaning of the Sanskrit Word: patu

  pātu—may He protect    SB 6.8.16, SB 6.8.32-33, SB 10.6.25-26
  pātu—please maintain    SB 5.20.28
  pātu—may He protect me    SB 6.8.18
  pātu—let it protect    Madhya 18.38

Can't find any compound Sanskrit words containing patu.