τὸ κοῖλον τοῦ ποδὸς δεῖξαι → show the heels, show a clean pair of heels, show the hollow of the foot, run away
exĭcō, v. exseco.
exico exicare, exicui, exictus V TRANS :: cut out/off; remove/make (hole) by cutting; cut, make cut in; castrate
exico, s. exseco.