Meaning of the Sanskrit Word: payuh

  pāyuḥ—the evacuating outlet    SB 2.6.9
  pāyuḥ—the evacuating sense organ    SB 2.10.27
  pāyuḥ—the evacuating organ    SB 3.26.13
  pāyuḥ—the working sense in the rectum    SB 4.29.15

Can't find any compound Sanskrit words containing payuh.