Abyssal language

The abyssal language was the language of demons.

History
It was a form of the Primordial language warped and twisted by the evil of the Abyss.

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

Script
Abyssal used the Infernal language's script or the Barazhad alphabet.