τὸ κοῖλον τοῦ ποδὸς δεῖξαι → show the heels, show a clean pair of heels, show the hollow of the foot, run away
lŭēla,¹⁶ æ, f. (luo), châtiment, punition : Lucr. 3, 1015.
*luela, ae. f. (luo.) :: 罰