Lewis Short
(adjective) : Theumēsus, i, m.
* A mountain of Boeotia, near Thebes, Stat. Th. 4, 372. — Hence, Theumēsius, a, um, , Theban, amnis, i. e. Ismenus, Stat. Th. 8, 462: arva,id. ib. 2, 383: juvenis, i. e. Polynices,id. ib. 2, 331.
Charlton T. Lewis, Charles Short, A Latin Dictionary