Lewis Short
(adjective) : Sāvus (Saus), i, m., = Σαοῦος
* A river in Pannonia, a tributary of the Danube, now the Save, Claud. Laud. Stil. 2, 192; Just. 32, 3, 8; Sex. Ruf. Brev. 7 fin.—Form Saus, Plin. 3, 25, 28, § 147.—Hence, : Sā-vensis, e, lying upon or adjoining the Save: regis, Sex. Ruf. Brev. 7 fin.
Charlton T. Lewis, Charles Short, A Latin Dictionary