Meaning

noun dominance or power through legal authority

noun a region marked off for administrative or other purposes

noun one of the self-governing nations in the British Commonwealth

originFrom Middle English dominion, from Middle French dominion, from Latin dominium (“lordship, right of ownership”), from dominus (“lord”), from domus (“house”). See demain, demesne, domain, dominium.

Etymology from Wiktionary, CC BY-SA 3.0