Typederived from Supernal

Linguists call it a War Tongue, a language built for war, words entirely made-up for expressing war, commands, and carrying over the noise of battle. Known today as Infernal, it is a subset of Supernal. If you know Infernal, then you know Supernal, but not the other way around. The origin of the language came about on the Forge Worlds, during the making of Asmodeus's secret Devil legions.

Infernal is a commonly spoken by devils and the Neogi.