Carantania
Carantania, also known as Carentania (Slovene: Karantanija, German: Karantanien, in Old Slavic *Korǫtanъ) was a Slavic principality that emerged in the second half of the 7th century, in the territory of present-day southern Austria and north-eastern Slovenia.
It was the predecessor of the March of Carinthia, created within the Carolingian Empire in 889.
Origin of the name
The name Carantania is of pre-Slavic origin.
Paul the Deacon mentions Slavs in Carnuntum, which is erroneously called Carantanum (Carnuntum, quod corrupte vocitant Carantanum).
Another possible etymology is that it may have been formed from a toponymic base carant- which ultimately derives from pre-Indo-European root *karra meaning 'rock', or that it is of Celtic origin and derived from *karantos meaning 'friend, ally'.
Its Slovene name *korǫtanъ was adopted from the Latin *carantanum. The toponym Carinthia (Slovene: Koroška < Proto-Slavic *korǫt’ьsko) is also claimed to be etymologically related, deriving from pre-Slavic *carantia.