ἱεράρχης

ου, ὁ
A. president of sacred rites, high-priest, IG 7.303 (Oropus), 9(1).32 (Stiris): Boeot. ἱαράρχας Schwyzer 515.4,al.:—hence Boeot. ἱαραρχίω, to be high-priest, ib.544.4.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project