Ur-Kittât

An old Sith tongue was used by the Sith, an ancient order of malevolent Force-practitioners, as a secret language. Exemple of words in that language were krataa and irluuk, which meant "death" and "fate." The Sith Master Darth Sidious, who came to rule the galaxy as Emperor, could speak that old tongue, and so did his apprentice Darth Vader.

Appearances

 * Lords of the Sith