LSJ
to be president, βωλᾶς IG 12(3).1259 (Cimolus); Dor. ἀϜρ- ib. 4.497.4 (Mycenae), SIG 56.43 (Argos).
(Always in 3 sg. impf. ἀϜρήτευε, ἀρήτευε, hence perh. for ἐϜρήτευε, from Ϝρητεύω, cf. Ϝρήτρα.)
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)