Strictly speaking there is no “common” in Calbion. Most nations have their own unique local language. However, there are larger regional languages that are used mainly for trade and travel.
Once the primary language of the Dorian Empire, it remains popular among the Remnants of the Dorian Empire. It is also the main language of the Mages Guild.
This is most commonly associated with Zhakhustra and the Eastern Divided Kingdoms.
Mostly known by citizens of Granditore and The Southern Caliphate.
This is generally associated with Athaeria and the Western Divided Kingdoms.