Lewis Short
Dŭrĭus | Dūrĭa, ae (noun M.m) : m. (, , m., Claud. in Laud. Ser. Reg. 72)
* One of the principal rivers of Spain, now the Douro, Mel. 3, 1, 7 sq.; Plin. 4, 20, 34, § 112 sq.; Sil. 1, 234 al.
Charlton T. Lewis, Charles Short, A Latin Dictionary