Dromon
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The dromon (from Greek δρόμων, dromōn, lit. 'runner'), a type of galley, became the most important type of warship of the Byzantine navy from the 5th to 12th centuries AD, after which the Italian-style galley superseded it. It developed from the ancient liburnian, which was the mainstay of the Roman navy during classical antiquity.
The Middle English word dromond and the Old French word dromont derive from the Greek word; these names identified any particularly large medieval ship.