D defs.my
Entry 1 sense Webster, 1913

Supremacy

/səp-rĕm'-əs-ē/ · Su·prem·a·cy · IPA /suˈpɹɛməsi/
01 n. The state of being supreme, or in the highest station of power; highest or supreme authority or power; as, the supremacy of a king or a par…
  1. 1.
    The state of being supreme, or in the highest station of power; highest or supreme authority or power; as, the supremacy of a king or a parliament.
    “The usurped power of the pope being destroyed, the crown was restored to its supremacy over spiritual men and causes.” Blackstone.
Phrases & compounds
Oath supremacy — an oath which acknowledges the supremacy of the sovereign in spiritual affairs, and renounced or abjures the supremacy of the pope in ecclesiastical or temporal affairs.