Thaoa
Thaoa is a language spoken in southeastern Rilola and many islands. It was spoken around the year 4100 (present day is 8700), but its primary descendant language, Sakhi, is often still called "Thaoa".
Thaoa is a very warlike culture, unlike most humans on planet Teppala. "We have our teeth in the arm of the Poswob Empire" is their statement that they have peaceful settlements in Pusapom and are interested in taking over the entire gigantic empire, saying that they could beat a Poswob army 40 times their own size simply because the Poswobs are so weak and delicate, meeting the Sakhi army's spears and swords with only their soft hands and bodies.
However, for the most part, their conquests have been directed towards areas even further east then themselves, including back-migrations to Laba to conquer the territories from which humans were born. This is because it is much easier to conquer an island, or mainland territory enclosed by mountains, whose people have no escape, than to invade even the very soft and unsuspecting Poswob Empire which is separated from the Sakhis by the planet's tallest and most rugged mountain range.
Poswobs have even begun to settle in the northern areas of the Sakhi Empire, despite warnings from the inhabitants that Poswobs literally have no rights and can simply be killed at any time without the murderer needing to worry about punishment. They are there primarily to support peaceful trade between the two empires, but some Poswobs have visions of their empire not always being locked out of the east coast by the tiny but aggressive Thaoa settlements, and would like to overcome the barrier whether through peace (trade) or war.