Cocytus

The river of lamentation in the Greek underworld, fed by the tears of the damned.
The Meaning of Cocytus
Cocytus was the river of wailing, its name drawn from the Greek kokytein — to shriek, to lament. It flowed through the deepest regions of Hades as a frozen or sluggish stream of grief, and its banks were the gathering place for unburied souls who could not cross into the realm of the dead. Homer names it in the Odyssey as a branch of the Styx that flows into the Acheron at the point where Odysseus summons the dead. Pausanias recorded that a real river in Thesprotia bore the name Cocytus, a dark and gloomy stream near the Necromanteion oracle where the living went to speak with the dead. Plato describes the Cocytus in the Phaedo as the river where those who sinned against their parents are cast, crying out to their victims until they receive pardon. Virgil places the river in the Aeneid as a boundary of Tartarus, its wailing audible from a distance. Dante transformed it most dramatically — in his Inferno, Cocytus becomes a frozen lake at the bottom of Hell, where traitors are locked in ice, their tears freezing on their faces.
Parents
Oceanus
Symbols
Fun Fact
Dante turned the weeping river into a frozen lake — the idea that the deepest treachery produces not heat but absolute cold.
Words We Inherited
English words and phrases that trace back to this myth. See our full guide to English words from Greek mythology.
Explore Further
Phlegethon
💭 conceptUnderworld
The river of fire in the Greek underworld, whose flames burned without consuming.
Kokytos
🐉 creatureunderworld,rivers
One of the five rivers of the underworld, whose name means "the river of wailing" — the waters of lamentation that the unburied dead wandered beside for one hundred years.
Stygian
💭 conceptLanguage and the underworld
An English adjective meaning extremely dark, gloomy, or hellish, derived from the River Styx, the boundary between the world of the living and the Greek underworld
Acheron River
🏛 placeUnderworld geography
The river of woe in the Greek underworld across which the dead were ferried by Charon
Nekyia
💭 conceptunderworld, ritual
Odysseus's ritual summoning of the dead in Book 11 of the Odyssey, where he speaks with ghosts at the edge of the Underworld to learn the way home.
Lēthē
💭 conceptmythology, philosophy
Forgetfulness or oblivion — the river or force of forgetting in the underworld, and the philosophical problem of how the soul loses or retains its knowledge.
Styx
🏛 placeThe river of the underworld
The great river that formed the boundary between the world of the living and the realm of the dead. Oaths sworn on the Styx were absolutely binding, even for gods.
God of the Underworld
💭 conceptDeath, the dead, underground riches
Hades governs the realm of the dead, ruling over every soul that crosses the river Styx.
Asphodel Meadows
💭 conceptUnderworld
The neutral afterlife realm in Greek mythology where ordinary souls wandered after death.
Oedipus Cycle
💭 conceptNarrative
The interconnected myths tracing the cursed lineage of Oedipus from prophecy to tragic fulfilment
Orpheus and Eurydice
💭 conceptNarrative
The musician's descent to the underworld to reclaim his dead wife, undone by a single backward glance
Metamorphoses
💭 conceptTransformation, punishment, mercy
Stories of mortals and gods reshaped into new forms — by love, divine punishment, or compassion — central to how Greeks explained the natural world.