Ex'arch, n.

(ĕks'ärk), n., [Lat. exarchus, Gr. ἔξαρχος, from ἐκ, ἐξ, out, and ἄρχειν, to begin, be first, lead, rule; Fr. exarque.] A chief or leader; hence, a viceroy of the Byzantine empire; a bishop, as superior over surrounding bishops; and more recently, an inspector of the clergy under the Greek patriarch. J. Murdock.