Lewis Short
(adj.adv.) : cŏthurnātus, a, um, adj.cothurnus
* Of or pertaining to the cothurnus, lit. buskined; hence, elevated, lofty, tragic (opp. excalceatus, comic, Sen. Ep. 8, 8; 76, 31; not ante-Aug.): Maronis grande opus,Mart. 5, 5, 8: Lycophron, Ov. lb. 529: vates,id. Am. 2, 18, 18: deae,id. F. 5, 348: sermo,Macr. S. 7, 5 fin.: scelera,Lact. 6, 20.—* adv.: cŏ-thurnātē, loftily, tragically; only comp. (late Lat.): cothurnatius,Amm. 28, 1, 4.
Charlton T. Lewis, Charles Short, A Latin Dictionary