ducatumducatus
Ducatumducatus is a neologism used in political theory and speculative fiction to describe a governance arrangement that combines a duchy with a formal leadership office. The term signals dual authority within a single polity, typically featuring a dynastic ruler alongside a consultative or elective body that shares executive functions.
Etymology and formulation: The word is a portmanteau derived from Latin roots related to ducatus, the duchy,
Definition and typical characteristics: In a ducatumducatus system, the duke or duchess remains head of state
Usage and origins: The term appears in speculative fiction writing and online political-theory discourse as a
See also: Duchy, Diarchy, Duumvirate, Feudalism, Constitutional monarchy.