"the flaming." I.e. "the flaming," one of the five rivers of the underworld, described as a son of Cocytus. It consists of a fire which burns but does not consume. It flows into the river Acheron and there is a huge waterfall where the two rivers meet. The other rivers are the Styx, the Cocytus, and the Lethe.

It is more commonly called Pyriphlegethon (Πυριφλεγέθων),1 "flaming with fire."

The name refers to the Greek word phlego, "to burn."



  1. Homer. Odyssey x, 513; Strabo. Geography v, p. 244.


  • Plutarch. Quaestiones Convivale viii, 9.
  • Seneca. Thyestes, 1018; Oedipus, 162; Agamemnon, 752.
  • Smith, William. (1870). Dictionary of Greek and Roman Biography and Mythology. London: Taylor, Walton, and Maberly.
  • Statius. Thebaid iv, 522.
  • Virgil. Aeneid vi, 265, 550.