ἀρχισυναγωγέω
From LSJ
ἄνω ποταμῶν ἱερῶν χωροῦσι παγαί → the springs of sacred rivers flow upward, backward to their sources flow the streams of holy rivers
English (LSJ)
v. ἀρχισυνάγωγος.
Spanish (DGE)
ser presidente de la asamblea religiosa, IG 10(2).288.3, 289.4 (Tesalónica II d.C.).