Oderian language

Oderian is a language spoken in Cassony. It is a western Indo-European language not specifically associated with any particular branch, but instead formed as a regional lingua franca.

It is thought the primary contributors of the language during its development were the early Germanic, Balto-Slavic and Celtic language groups. The language only existed as a living and developing creole between the 6th and 1st centuries BC, though it continued as a fossilized literary language from then onwards.