exacting
From LSJ
τὸ κοῖλον τοῦ ποδὸς δεῖξαι → show the heels, show a clean pair of heels, show the hollow of the foot, run away
English > Greek (Woodhouse)
adj.
Greedy: P. πλεονεκτικός. Hard to please: P. and V. δυσάρεστος; see peevish. Unfeeling: P. and V. ἀγνώμων. Unfeeling: P. and V. ἀγνώμων. Be exacting, v.: P. πλεονεκτεῖν. Difficalt to deal with: Ar. and P. χαλεπός, P. and V. ἄπορος.