Cocytus

Cocytus, meaning "the river of wailing" (from the Greek), is a body of water in the underworld in Greek mythology. Cocytus flowed into the river Acheron, across which dwelled the underworld, the mythological abode of the dead.

Cocytus is referenced in Dante's Inferno.

After being infused with catoms by the Caeliar scientist Inyx, former COLUMBIA NX-02 Captain Erika Hernandez reflected that a petrified tree and her current existence reminded her of the portion of the Divine Comedy where traitors were not sent to fire and brimstone, but the Ninth Level of Hell and sealed into Cocytus where all thought and feelings died.