Meaning of the Sanskrit Word: makhaih

  makhaiḥ—by performing sacrifices.    SB 9.11.1, Madhya 20.345
  makhaiḥ—by executing sacrifices    SB 4.8.21
  makhaiḥ—by sacrifices    SB 4.20.16
  makhaiḥ—by offering sacrifices.    SB 9.16.20

Can't find any compound Sanskrit words containing makhaih.