διαβολή (diabolē)

1. false accusation, slander, calumny , ἐπὶ διαβολῇ εἰπεῖν (Herdotus Historicus); διαβολὰς ἐνδέχεσθαι to give ear to false accusations , (Herdotus Historicus); ἐμὴ δ. the slanders against me, (Plato Philosophus)
2. a quarrel, enmity , (Thucydides) (ML)