Slavs
Standardised Slavic languages that have official status in at least one country are: Belarusian, Bosnian, Bulgarian, Croatian, Czech, Macedonian, Montenegrin, Polish, Russian, Serbian, Slovak, Slovene, and Ukrainian.
South Slavs
The South Slavs are known in Serbian, Macedonian and Montenegrin as "Južni Sloveni" (); in Bulgarian as "Yuzhni Slavyani" (); in Croatian and Bosnian as "Južni Slaveni"; in Slovene as "Južni Slovani". The Slavic root "*jugъ" means "south". The Slavic ethnonym itself was used by 6th-century writers to describe the southern group of Early Slavs (the "Sclaveni"); West Slavs were called "Veneti" and East Slavs "Antes". The South Slavs are also called "Balkan Slavs", although this term does not encompass the Slovenes.