Lewis Short
(adjective) : Issus or -os, i, f., = Ἰσσός
* A city of Cilicia, on the Mediterranean (the Gulf of Issus, now Gulf of Iskenderun), at the foot of Mount Amanus, where Darius was defeated by Alexander, Mel. 1, 13, 1; Plin. 5, 27, 22, § 91; Cic. Fam. 2, 10, 3; Curt. 3, 8, 8.
* Deriv. Issĭcus, a, um, , of or belonging to Issus: sinus,the Gulf of Issus,Mel. 1, 13, 1; Plin. 2, 108, 112, § 243.
Charlton T. Lewis, Charles Short, A Latin Dictionary