From pleonektes; to be covetous, i.e. (by implication) to over-reach -- get an advantage, defraud, make a gain.
see GREEK pleonektes
1. intransitive, to have more, or a greater part or share: Thucydides, Xenophon, Plutarch, others; to be superior, excel, surpass, have an advantage over, τίνος (genitive of person) τίνι (the dative of thing): Xenophon, Plato, Isocrates, Demosthenes, others.
2. transitive, to gain or take advantage of another, to overreach: (Herodotus 8, 112), Plato, Diodorus, Dionysius Halicarnassus, Dio Cassius, others; and so in the N. T. in 2 Corinthians 7:2; 2 Corinthians 12:17, 18; 1 Thessalonians 4:6 (see πρᾶγμα, b.); passive (cf. Buttmann, § 132, 22) ὑπό τίνος, 2 Corinthians 2:11(10).