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n. Eastern Orthodox Church A cleric ranking below a bishop.

n. Eastern Orthodox Church The head of a monastery or a group of monasteries.

n. Eastern Orthodox Church Used as an honorific title for an unmarried priest.

n. The superior of a large monastery, or group of monasteries, in the Orthodox Church.

n. An honorary title sometimes given to a monastic priest.

n. A chief of a monastery, corresponding to abbot in the Roman Catholic church.

n. A superintendent of several monasteries, corresponding to superior abbot, or father provincial, in the Roman Catholic church.

n. In the Eastern Church, an abbot-general, having other abbots (hegoumenoi) with their monasteries under his superintendence; also sometimes, especially among the Greeks, the abbot of a single large monastery.

n. the superior of an abbey of monks

"Originally there seems to have been no appreciable difference in the signification of these two words, but after the period of Justinian the title archimandrite was jealously reserved for the superiors of the older or of the more important monasteries."

superior   

abbe