Lewis Short
Cōcȳtus | -ŏs, a, um | Cōcȳtĭus (noun M) : (), , , = Κωκυτὀς [river of lamentation, from κωκὐω, to howl, weep]
* A mythic river in the Lower World, Cic. Tusc. 1, 5, 10; id. N. D. 3, 17, 43; Verg. G. 3, 38; 4, 479; id. A. 6, 132; 6, 297; 6, 323; Hor. C. 2, 14, 18 al.; acc. Gr. Cocyton, Claud. Rapt. Pros. 2, 353; cf. Heyne,Verg. A. 6 Excurs. IX.
* Adj.: , , of Cocytus: aqua,Petr. 120, 69; and Cocytia aequora,Claud. in Rufin. 2, 471: virgo, i. e. Alecto,Verg. A. 7, 479.
Charlton T. Lewis, Charles Short, A Latin Dictionary