Old Eshian

One of the ancient--and almost entirely extinct--Human languages (along with Old Eolian, Old Voranic, and Caleadan), Old Eshian is now used primarily as a nautical language, sharing certain elements with Thraxian. It is one of the progenitors of Eovoresh but sounds much more akin to the dialect of the Erudites in its distant ancestry. 
Old Eshian therefore uses the Hycin Alphabet, making it the most common nautical script in the Centerlands.