
1) Gubernatorial title 2) Provincial ruler in Greece
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https://www.crosswordclues.com/clue/nomarch

Nomarchs were the semi-feudal rulers of Ancient Egyptian provinces. Serving as provincial governors, they each held authority over one of the 42 nomes (Egyptian: sepat) into which the country was divided. Nome is derived from the Greek nomos, meaning a province or district, and nomarch is derived from the Greek title nomarches (νομάρχης), ...
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http://en.wikipedia.org/wiki/Nomarch

• (n.) The chief magistrate of a nome or nomarchy. • (n.) The chief magistrate of a nome or nomarchy.
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http://thinkexist.com/dictionary/meaning/nomarch/

governor of the ancient Egyptian administrative division called the nome (q.v.).[1 related articles]
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http://www.britannica.com/eb/a-z/n/48
Nom'arch noun [ Greek ... a district +
-arch .] The chief magistrate of a nome or nomarchy.
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http://www.encyclo.co.uk/webster/N/28

The chief official of a nome. In the late Old Kingdom, and early Middle Kingdom nomarchs gained their office as hereditary rulers. They governed their nomes more or less independently of any central authority. During periods of highly centralized government, nomes ceased to have much political importance.
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https://www.encyclo.co.uk/local/10138
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