Eureka Classis
On June 7, 1911, seven ministers and sixteen congregations organized to form the Eureka Classis. The name of the Classis came from the Greek word ‘eureka’ which means ‘I found it’ and not on the town Eureka, South Dakota, where the second meeting of the Classis would be held. The name was designed to mean that they had found a solution to their doctrinal problems with the rest of the denomination.
Carantania
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 was adopted from the Latin *"carantanum". The toponym "Carinthia" (Slovene: < Proto-Slavic "*korǫt’ьsko") is also claimed to be etymologically related, deriving from pre-Slavic *"carantia". The name, like most toponyms beginning with *Kar(n)- in this area of Europe, are in turn most likely linked to the pre-Roman tribe of the Carni that once populated the eastern Alps.