πανουργεῖν

From LSJ

πρὸ συντριβῆς ἡγεῖται ὕβρις → pride goeth before destruction, pride comes before a fall, pride goes before a fall, pride goeth before a fall, pride wenteth before a fall, pride cometh before a fall, pride comes before the fall

Source

Greek > English (Woodhouse Verbs Reversed)

(see also πανουργέω): be wicked, play the knave, practise villainy, stick at nothing