λευστήρ · leustēr — LSJ
one who stones, oppressor, a mere stone-thrower
one who stones, E. Tr. 1039; τὸν Κασσανδρέων λευστῆρα their oppressor, Ael. NA 5.15; so perh. in Hdt. 5.67, where the oracle tells Cleisthenes Ἄδρηστον μὲν εἶναι Σικυωνίων βασιλέα, ἐκεῖνον δὲ λευστῆρα (or perh. a mere stone-thrower, i.e. ψιλός: Suid., quoting Ael. Fr. 115, makes it Pass., = ὁ καταλευσθῆναι ἄξιος).
II by stoning
as Adj., λ. μόρος death by stoning, A. Th. 199; λευστῆρα πρῶτον . . ῥίψας πέτρον Lyc. 1187, cf. Hsch.