Lewis Short
(adjective) : Argentĕus, a, um
* A standing epithet of a river in Gallia Narbonensis, now Argents: flumen Argenteum, Lepidus ap. Cic. Fam. 10, 34, 1: amnis Argenteus,Plin. 3, 4, 5, § 35; with a tēte du pont and castle: Pons Argenteus, Lepidus ap. Cic. Fam. 10, 34, B.
Charlton T. Lewis, Charles Short, A Latin Dictionary