πανουργεῖν

From LSJ

ξυνῆλθεν ἀτταγᾶς τε καὶ νουμήνιος → birds of a feather flock together, the francolin and the new-moon bird get together

Source

Greek > English (Woodhouse Verbs Reversed)

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