Pronunciation: ' tr ī (- ə )- ˌ rärk
Function: noun
Etymology: Latin trierarchus, from Greek tri ē rarchos, from tri ē r ē s trireme (fr. tri- + - ē r ē s akin to Latin remus oar) + -archos -arch ― more at ROW
Date: circa 1656
1 : the commander of a trireme
2 : an Athenian citizen who had to fit out a trireme for the public service