Tsi, or Mrlsstese was the native language of the Mrlssi species from Mrlsst. Mrlsstese had high piping sounds that some species found delightful and others exasperating. It was considered by some a difficult language to learn.
- The Essential Guide to Planets and Moons (as Tsi)
- Alien Anthology (as Mrlssese, Mrlsstese)
- Coruscant and the Core Worlds (as Mrlssese)
- Ultimate Alien Anthology (as Mrlsstese)
- Knights of the Old Republic Campaign Guide
- Galaxy of Intrigue (as Mrlsstese)
In other languages