trierarchy
/ˈtraɪəˌrɑrki/
noun
- The system or duty of financing and commanding a trireme in ancient Athens; also, the period of service as a trierarch.
- The trierarchy was a form of taxation on the wealthy in ancient Athens.
- Scholars study the trierarchy to understand Athenian naval power.
- He fulfilled his trierarchy by equipping a ship for two years.