thalassocracy

From Ancient Greek θαλασσοκρατέω (thalassokratéō, “to be master of the sea”), from θάλασσα (thálassa, “sea”) + κράτος (krátos, “rule”). By surface analysis, thalasso- +‎ -cracy.

• IPA^(key): /ˌθæləˈsɒkɹəsi/

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thalassocracy (countable and uncountable, plural thalassocracies)

1. A state whose power derives from its naval or commercial supremacy on the seas.

   Synonyms: maritime empire, thalattocracy

   Coordinate term: tellurocracy

2. Maritime supremacy.