Cetras
The Cetras are a fictional ethnolinguistic group that appears in speculative fiction and worldbuilding narratives. They are traditionally described as a maritime people who inhabit the Archipelago of Nysa, a string of islands in a temperate sea. Cetren society emphasizes seamanship, navigation, and coastal crafts such as boat building and net weaving. They are commonly depicted as skilled sailors who chart celestial routes and rely on renewable resources.
The name Cetra is their own designation for themselves in most texts; outsiders sometimes use the exonym
Social structure centers on matrilineal clans and guilds of navigators and traders. Elders arbitrate disputes, while
Language and literature: The Cetran language is primarily oral, with a small set of writing systems appearing
History and modern era: Accounts place the Cetra as early maritime explorers who established trade routes with