πρόβουλος
οἱ τοῖς πέλας ἐπιβουλεύοντες, λανθάνουσι πολλὰκις ὑφ' ἑτέρων τοῦτ' αὐτὸ πάσχοντες → when people plot against their neighbours, they fall victim to the same sort of plot themselves
English (LSJ)
ον, (βουλή)
A deliberating beforehand or for others, Ἄτα prob.in A.Ag.386 (lyr.): but usu. II pl., standing committee to examine measures before they were formally proposed to the people, Arist.Pol.1298b29, 1299b31, 1322b16; at Megara, Ar.Ach.755; Corinth, Nic. Dam.60 J.; Corcyra, IG9(1).682.12; Delphi, GDI2642.26; of the ἀμνήμονες at Cnidus, Plu.2.292a; ἀπαγγέλλειν . . δήμου προβούλοις A.Th.1011. 2 of the delegates of the twelve Ionian states at the Panionium, Hdt.6.7; of delegates appointed to consult on the mode of meeting Xerxes, π. τῆς Ἑλλάδος Id.7.172. 3 at Athens, committee of Ten, appointed after the Sicilian defeat (cf. Th.8.1), Decr. ap.Arist.Ath.29.2, Ar.Lys.421, Lys.12.65, Arist.Rh.1419a28. 4 of the Roman consuls, D.H.4.76, 5.1.