dromond

n. large single-sailed ship powered by rowers in the Middle Ages

The dromons (from Greek δρόμων, dromon, i.e. "runner") were the most important warships of the Byzantine navy from the 6th to 12th centuries AD. They were indirectly developed from the ancient trireme and were usually propelled by both oar and sail, a configuration that had been used by navies in the Mediterranean Sea for centuries.
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Alt. of Dromon
  

dromond /'drɔmənd/
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