Melkian
From Tolkien Gateway
In an older version of J.R.R. Tolkien's conception of the Languages of Middle-earth as expounded in the Lhammas, Melkian is the language which was named after the fallen Vala Melkor (also known as Morgoth). It was spoken by him and his servants and is the predecessor of the Black Speech of the Orcs and other evil beings.
This concept was later dropped.
See also