Ŏshil
Rise with the tides and move with the wavesŎshil, also known as the Mertongue, is the language of the Wūlsed'ok merfolk. Native to the merfolk home world of Tiyu Shòbá, in Tiyu Amara it is spoken primarily in the south and eastern coastal regions of Thurásin.
History
While extensive historical details about Ŏshil are not known in Tiyu Amara, it is understood that the language developed among the Wūlsed'ok during the time in their history where they were semi-nomadic, relocating great distances with the seasons. That partial isolation from their fellow merfolk, as well as the passing interactions with the myriad language of the sea, influenced Ŏshil's development. It was brought to Thurásin and Tiyu Amara as a whole when the Wūlsed'ok came through the Portal of Siéhl in 27 Disturbance (72 Years Ago). Since then, it has seen relatively minor inroads with the land-based humans and elves, seeing the most adoption in the island communities in the Dyiiladuun Sea and in the coastal regions of Lawaguum and Ettioril.
Spoken by

Comments
Author's Notes
If you ask how the tones work I will cry ;-;