A ''protoiereus'' (from grc, πρωτοϊερεύς, "first priest",
Modern Greek: πρωθιερέας) or protopriest in the
Eastern Orthodox Church
The Eastern Orthodox Church, also called the Orthodox Church, is the second-largest Christian church, with approximately 220 million baptized members. It operates as a communion of autocephalous churches, each governed by its bishops vi ...
is a priest usually coordinating the activity of other subordinate priests in a bigger church. The title is roughly equivalent with the title of
protopope or
archpriest.
[Даль В. И. Толковый словарь живого великорусского языка. М.:"Русский язык", 2000. . Vol. 3, page 394]
References
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Eastern Orthodox clergy
Ecclesiastical titles
Eastern Christian ecclesiastical offices