istria
Istria (name) means the name of a peninsula that lies in Croatia, Slovenia and Italy, along the Adriatic Sea's northeastern coast, otherwise called the Istrian Peninsula.
Etymology
From Latin Histria, from Ancient Greek Ἱστρία (Histría), named after Ἵστρων (Hístrōn) (ἔθνος (éthnos)), the ethnicon of the Illyrian/Venetic tribe of the Histri who inhabited the region. The name could itself be related to Hister, a Roman name for the Danube, from Ancient Greek Ἰστρίη (Istríē), the Dacian-Thracian name for the river god Danubius, a name meaning "swift," and ultimately from Proto-Indo-European *dʰenh₂- (“to flow”). Also see Histria.