τὸ κοῖλον τοῦ ποδὸς δεῖξαι → show the heels, show a clean pair of heels, show the hollow of the foot, run away
P. and V. λεπτουργεῖν, P. and V. σοφίζεσθαι.
P. παραγωγή, ἡ, Ar. and P. σόφισμα, τό.