the Tagus, river of Spain (famous for its golden sands)
Latin word, found 42 times in the texts on Socratos.
Vergil, Aeneid 9.418: Dum trepidant, it hasta Tago per tempus utrumque
Ovid, Amores 1.15.34: Cedat et auriferi ripa benigna Tagi!
Ovid, Metamorphoses 2.251: quodque suo Tagus amne vehit, fluit ignibus aurum,