Lewis Short
Căsīnum | Căsīnas, ātis | Căsīnus, a, um (noun N) :
* A town of Latium, east of Aquinium, now ruins near S. Germano: its citadel the present Monte Casino, Varr. L. L. 7, § 29, p. 86 Bip.; id. R. R. 3, 4, 2; Plin. 3, 5, 9, § 63.
* Hence the adjj.
* Of Casinum: ager, Cato, R. R. 136; Cic. Agr. 2, 25, 65: fundus,id. Phil. 2, 40, 103; and absol.: in Casinati or Casinate,in the region of Casinum,Varr. R. R. 2, 3, 11; Plin. 2, 103, 106, § 227.
* Of Casinum: Nymphae,Sil. 12, 527 dub. (others, Casini Nymphae).
Charlton T. Lewis, Charles Short, A Latin Dictionary