In J.R.R. Tolkien’s mythology, what is the name of the language of Mordor?

In J.R.R. Tolkien’s mythology, the language associated with Mordor is the Black Speech. Tolkien created it as the language devised by Sauron for his servants.

The Black Speech appears most famously in the inscription on the One Ring: “Ash nazg durbatulûk,” part of the Ring-verse. The inscription is written in Tengwar script, but the language itself is Black Speech, an important distinction between a writing system and a spoken language.

Tolkien provided relatively little surviving vocabulary and grammar for the Black Speech compared with languages such as Quenya and Sindarin. Its limited documentation has led to different levels of detail in adaptations and fan reconstructions.

Black Speech should not be confused with Mordor’s other tongues. Orcs and other inhabitants could use regional languages or Westron, the Common Speech. The term also differs from Sindarin, an Elvish language, and from the language associated with the Ring’s inscription as a script.