τὸ κοῖλον τοῦ ποδὸς δεῖξαι → show the heels, show a clean pair of heels, show the hollow of the foot, run away
λίψ, ὑγρότης, ὑγρόν, ὑγρά, ὑγρή, ὑγρασία, χύμα, χύσις