Lewis Short
Cottĭus | Cottĭus, a, um | Cottĭānus, a, um (noun M) :
* The name of two kings of northern Italy, the father, who was a contemporary and friend of Augustus, Amm. 15, 10, 2 and 7, and the son (cf. Dio Cass. 60, 14), after whose death Nero made the country a Roman province, Suet. Ner. 18; id. Tib. 37; Aur. Vict. Caes. 5, 2.—Hence
* Adjj.
* Cottian: Alpes Cottiae, the Cottian Alps, west of Augusta Taurinorum, whose highest point is Alpis Cottia, now Mont Genèvre, Tac. H. 1, 87; Amm. 15, 10, 2.
* The same: civitates,Plin. 3, 20, 24, § 135: Alpes,Tac. H. 1, 61; 4, 68.
Charlton T. Lewis, Charles Short, A Latin Dictionary