Xanalress
From Arelith Wiki
To speak Xanalress in game, type -xa in Mith's Virtual Console.
Xanalress is the dialect of elven spoke by Drow; on Arelith it is given its own unique category as a language. Other Elven races would have to learn Xanalress as a separate and distinct language from Elven.
On Arelith this language is known by: