Abyssal language

Abyssal is the language of demons. It is a form of the Primordial language warped and twisted by the evil of the Abyss.

Sound
Lower-ranking demons speak using sounds like the barking of canines, while the speech of more refined demons sounds like softly droning ocean waves mingled with the violence of a swarm of angry hornets. As with everything involving tanar'ri, however, their speech is unpredictable, and sometimes an elite balor's words may be rougher or a lowly bar-lgura's words may be smoother.

Script
Abyssal uses the Infernal language's script.