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[doo-uhm-ver, dyoo-] /duˈʌm vər, dyu-/
noun, plural duumvirs, duumviri
[doo-uhm-vuh-rahy] /duˈʌm vəˌraɪ/ (Show IPA).
Roman History
one of two officers or magistrates jointly exercising the same public function.
1590-1600; < Latin, back formation from duumvirōrum, genitive plural of duovirī two men, equivalent to duo- duo- + virī, plural of vir man, cognate with Old English wer (see werewolf) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for duumvir


noun (pl) -virs, -viri (-vɪˌriː)
(Roman history) one of two coequal magistrates or officers
either of two men who exercise a joint authority
Word Origin
C16: from Latin, from duo two + vir man
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for duumvir


in ancient Rome, a magistracy of two men. Duoviri perduellionis were two judges, selected by the chief magistrate, who tried cases of crime against the state. Duoviri navales, at first appointed but later popularly elected (311-178 BC), had charge of a fleet. The two chief magistrates of the colonies and municipia (i.e., communities under Roman domination) were often called duoviri jure dicundo.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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