Chomarra

Chomarra is a human language or family of dialects, widely spoken in Achuirea and Vhaluzia, which has evolved over millennia from the archaic Tuvai spoken by the People of the Ten Thousand Ships when they fled across the ocean at the end of the Schism Wars. This means that it shares a common root with the modern Tuvai spoken in Orithea, and ultimately with all other human languages originating from the proto-archaic Tuvai root. However, it diverged from those common roots so long ago that it has little in common with modern Tuvai, and is not at all mutually intelligible; they are two totally different languages. 
Dialects of Chomarra are spoken as the primary language throughout Belekesh and most of the rest of human-inhabited Achuirea (as well as Vhaluzia and many parts of the Azarian archipelago), so Achuireans often simply call it “common” or “the common tongue,” just as Oritheans do with Tuvai. Mariners and merchants who have spent time on both continents may refer to the two tongues simply as “Orithean (or Western) Common” and “Achuirean (or Eastern) Common” instead of Tuvai and Chomarra.