Meaning of the Sanskrit Word: gabhira

  gabhira—deep    SB 10.6.12, SB 10.6.15-17, Madhya 19.137, Antya 1.154
  gabhira—subtle    SB 1.5.18
  gabhira—insurmountable    Madhya 24.169
  gabhira—of the cows    Adi 17.111

Can't find any compound Sanskrit words containing gabhira.