Meaning of the Sanskrit Word: vaitaranyam

  vaitaraṇyām—in Vaitaraṇī, the river of suffering    SB 2.2.7
  vaitaraṇyām—named Vaitaraṇī    SB 5.26.22
  vaitaraṇyām—in the river known as Vaitaraṇī (which lies in front of the doorway of Yamarāja, the superintendent of death)    SB 7.9.41

Can't find any compound Sanskrit words containing vaitaranyam.