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trierarch

noun tri·er·arch \ ˈtrī(-ə)-ˌrärk \
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Definition of trierarch

1 : the commander of a trireme
2 : an Athenian citizen who had to fit out a trireme for the public service

Origin and Etymology of trierarch

Latin trierarchus, from Greek triērarchos, from triērēs trireme (from tri- + -ērēs — akin to Latin remus oar) + -archos -arch — more at row

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