Meaning of the Sanskrit Word: vipraih

  vipraih—by the brahmanas    SB 1.8.7, SB 1.11.23, SB 4.15.1, SB 4.17.9, SB 6.13.10, SB 9.22.16, SB 9.22.17, SB 9.22.16-17, SB 10.7.5
  vipraih—all brahmanas    SB 3.13.20
  vipraih—by the learned brahmanas    SB 1.12.13
  vipraih—by calling all the brahmanas    SB 10.7.11
  vipraih—by the great sages and brahmanas    SB 4.21.9
  vipraih—by learned brahmanas    SB 6.14.33

Can't find any compound Sanskrit words containing vipraih.