κηλώνειον
From LSJ
νόσημα γὰρ αἴσχιστον εἶναί φημι συνθέτους λόγους → for I consider false words to be the foulest sickness
English (LSJ)
Ion. κηλων-ήϊον, τό, = foreg. 1, Hdt.1.193, 6.119, Ar.Fr.679, Arist.Mech.857a34, Aen.Tact.39.7, PCair.Zen.155 (iii B.C.), Gal. UP 7.7:—written κηλώνιον, Apollod.Poliorc.162.8, al.