Iguvian
Iguvian is a demonym used in fiction and speculative worldbuilding to refer to inhabitants of a hypothetical river delta region known as Iguva or Iguvia. The term is not associated with a real-world ethnic group, and its specifics vary by author and setting.
Etymology and usage: The name follows the common demonym pattern with the suffix -ian, typically linked to
Geography and society: In many fictional depictions, Iguvians are riverine people living in a network of waterways
Language and culture: A fictional Iguvian language is sometimes portrayed as tonal or agglutinative, with vocabulary
In fiction and worldbuilding: The Iguvian label appears in various novels, role-playing games, and worldbuilding anthologies