LSJ
ου, ὁ, president of the κοινὸν τῶν Ἀχαιῶν, IG 4.1600 (Corinth, ii AD), SIG 846.5 (Delph., ii AD).
official of the Delphic Amphictyony, Ἑ. ἀμφικτυόνων IG 4.590 (Argos, ii AD).
official of the Greek community in the province of Galatia, IGRom. 3.211 (Ancyra, ii AD). as an honorary title, OGI 528.10 (Prusias).
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)