πανουργεῖν
From LSJ
ξυνῆλθεν ἀτταγᾶς τε καὶ νουμήνιος → birds of a feather flock together, the francolin and the new-moon bird get together
Greek > English (Woodhouse Verbs Reversed)
(see also πανουργέω): be wicked, play the knave, practise villainy, stick at nothing