The river Danube.
From Proto-Celtic *Dānowyos, an extended form of the river-name *Dānu, either from Proto-Indo-European *déh₂nu (“river goddess”) or from Proto-Indo-European *dʰenh₂- (“run, flow”).
Pratique falar e memorizar " Danubius " e muitas outras palavras e frases em latim .