Meaning of the Sanskrit Word: papiyan

  pāpīyān—sinful    Adi 17.78, Madhya 7.143
  pāpīyān—vicious    SB 3.9.35
  pāpīyān—most sinful    SB 4.14.29
  pāpīyān—the most sinful    SB 5.26.16

Can't find any compound Sanskrit words containing papiyan.