Acheron
Ἀχέρων
The river of the underworld where Charon's boat sails.
One of the five rivers of the underworld, its name is linked to "woe."
In many traditions, the river Charon rows across is not the Styx but this one.
A real river of the same name flows in northwestern Greece, and in antiquity its gorge was thought to be an entrance to the underworld.
SourcesVirgil, Aeneid