ἀρχιεράομαι
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
Med.,
A to be high-priest or priestess, LXX 4 Ma. 4.18, J.AJ17.19.1, OGI544.14 (Ancyra), IG14.1878, BSA16.120 (Pisidia, iii A.D.), etc.: pf. part. ἠρχιεραμένος IGRom.3.1475 (Iconium).