Massassi was an ancient tongue spoken by the Massassi, a primitive but Force-sensitive race of the Sith species. It was briefly replaced in use by the Sith. This Massassi writing system used symbols, but one symbol did not always correspond to one letter in the Aurebesh or High Galactic alphabets. This resulted in a wide range of time-consuming possibilities when translating. Notable texts in the language included the Books of Massassi. Dark Lord of the Sith Exar Kun had hieroglyphs in the Massassi tongue etched into the obsidian walls of his temple.