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n. pl. tri·er·ar·chies
1. The authority or office of the commander of a trierarch.
2. The ancient Athenian system whereby individual citizens furnished and maintained triremes as a part of their public duty.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, pl -chies
1. (Historical Terms) the responsibility for fitting out a state trireme, esp in Athens
2. (Historical Terms) the office of a trierarch
3. (Historical Terms) trierarchs collectively
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈtraɪ əˌrɑr ki)

n., pl. -chies. (in ancient Greece)
1. the office of a trierarch.
2. (in Athens) the civic duty of fitting out or furnishing triremes.
[1830–40; < Greek triērarchía. See trierarch, -y3]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


an ancient Athenian policy allowing private citizens, as part of their civic duty, to fit out triremes for the defense of the city.
See also: War
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
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The obligations came in two basic forms; festival liturgies and trierarchies. The assignment of liturgies was administered by magistrates, who initially solicited volunteers for the liturgies.
Gabrielsen's detailed study of trierarchical costs claims that in a two-month trierarchy (which he sees as the norm) the state would provide 1T while the trierarch himself would have to provide a subsidy of a further talent.(88) On Gabrielsen's assumption of sixty trierarchies taking place each year, at least 60T of private cash would have been put into circulation along with 60T of public subvention.
I pay many large war levies, perform many trierarchies, act munificently as choregos, lend money interest-free to many....
Apollodoros was himself a wealthy man, as shown by his assumption of trierarchies in the 360s.
hirers of trierarchies)'.(11) The language may be overheated, but we cannot doubt that the abuse existed, and one of these triremes would have been an infinitely better investment than Macartatus'.