Meaning of the Sanskrit Word: varistham

  variṣṭham—more glorified    Madhya 20.59, Antya 4.69, Antya 16.26
  variṣṭham—unto the greatest.    SB 3.25.11
  variṣṭham—more glorious    SB 7.9.10
  variṣṭhām—the most glorious    Madhya 19.207-209

Can't find any compound Sanskrit words containing varistham.