A.one who leads on, adviser, “πρηγμάτων ἀγαθῶν” Hdt.5.31 codd.; “οὑτοσὶ δὲ . . ἁπάντων ἦν τούτων ὁ ἐ.” D.35.17.
II. expounder, interpreter, esp. of oracles, dreams, or omens, Hdt.1.78; at Athens, of sacred rites or customs, modes of burial, expiation, etc., spiritual director, Pl.Euthphr.4d,9a, Lg.759c, 759e, 775a, D.47.68, Is.8.39, Thphr.Char.16.6: as an official title, “ἐ. Πυθόχρηστος” IG3.241; ἐ. ἐξ Εὐπατριδῶν ib.267; “ἐ. ἐξ Εὐμολπιδῶν” Lys.6.10, etc., cf. Suid.s.v.; πάτριος ἐ., of Apollo, Pl.R.427c.
b. at Rome, of the pontifices, D.H.2.73.
2. guide, cicerone, to temples, etc., Paus.5.15.10, SIG1021.20 (Olympia).
3. commentator, Gal. 15.518, Mich.in EN50.8.