Definitions

1. noun

The state of being a suzerain, or the territory over which a suzerain exercises control.

“The ancient Mesopotamian empire’s suzerainty over the surrounding regions was a dominant force in the region.”

2. noun

The power or authority of a suzerain, especially over a vassal state.

“The suzerainty of the Mongol Empire was a crucial factor in its expansion across Asia and Europe.”