διασθενής

From LSJ

τὸ κοῖλον τοῦ ποδὸς δεῖξαιshow the heels, show a clean pair of heels, show the hollow of the foot, run away

Source

Spanish (DGE)

-ές
insignificante, reducido al mínimo τόπος Alex.Aphr.Pr.1.94.