Grammat
Grammat is a fictional constructed language that appears in a cycle of science fiction novels and related role-playing game materials. It was devised by a fictional linguist within the works, credited as Dr. Nara Vell, to illustrate how grammatical systems can evolve in a cosmopolitan setting. The language is described as primarily agglutinative with a subject–object–verb order, and it uses an extensive system of affixation to encode tense, aspect, mood, evidentiality, case, number, and agreement.
Phonology is described as fairly regular, with a seven-vowel system featuring vowel harmony and a consonant
The writing system in the fictional world is a distinctive syllabary known as Grammat Script; a romanization
Reception and use: Grammat is cited in fan grammars and reference guides as an example of world-building