Meaning of the Sanskrit Word: papiyasim

  pāpīyasīm—sinful    SB 1.14.3, SB 3.12.3
  pāpīyasīm—full of sinful activities    SB 4.28.59
  pāpīyasīm—most sinful    SB 6.17.15

Can't find any compound Sanskrit words containing papiyasim.