Aiterean is the native language of the Brelish people and a common tongue used for international communication throughout most of Lethea.
Galdic was a dialect of Aiterean spoken by the the Brelish who live along the Gald river that went extinct some time before 201 AA.
The Gashan language is one of the primary tongues spoken by the Gapeshi, a people who reside on the western shores of the Gulf.
Rielish is believed to be the ancient language from which all other human languages of the world descend from.