The Pasman language (literally, "the Southern tongue") developed by circa -200 EA from the South Continental Paimaru dialect of the Saalani language, a dialect notable for its development of ejective consonants. The settlement of Paimaru ("New Harbor") is known as Pēmaro in Pasman.
The language is spoken by K'oaŋ peoples, who live in the coastal humid continental area south of the Yon region. This temperate land was covered in rich, thick deciduous forest that was well-suited to corn- and tomato-based agriculture imported from the Kido of Alabay. With a solid agricultural base and developing urbanization, these southerners were mostly able to resist the waves of invasion and colonization from the Yon Islands that climaxed circa -200 to -100 EA.
The romanized Pasman alphabet consists of 24 letters: a e i o u m n ŋ p t k p' t' k' b d g c s x h l r. The apostrophe marks ejective consonants, and <c> represents the affricate /ts/. The only diacritic used is a macron, which marks a vowel that is pronounced twice as long.
Pasman has a very simple syllable structure, (C)V(V)(C). Only a fricative or nasal consonant or /l/ can close a syllable, and consonant clusters only occur across syllable boundaries.