Abyssal

Abyssal is the common tongue of the Dreaming World. The language sounds like the ancient echo of a forgotten language, with the worried whispers of fading voices mixed in. Only few living people speak the language of the dead, and those who do speak it are often shunned by society for their close relationship with the death. Some who speak Abyssal might be funerary priests or necromantic ritualists, while others might simply have learned it by going insane.

Script
Abyssal is written in Abyssal Glyphs, a hieroglyphic lettering system which consists out of horizontal word bars from which the letters hang down.