Dictionary entry

πλεονέκτης

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

** πλεονέκτης, -ου, ὁ

(< πλέον, ἔχω), [in LXX: Si 14:9*;] = ὁ θέλων πλέον ἔχειν (v. MM, xx),

one desirous of having more, covetous: I Co 5:10, 116:10, Eph 5:5.†