G0727
ἅρπαξ
rapacious
ἅρπαξ, -αγος, ὁ, ἡ (ἁρπάζω), [in LXX: Gen.49:27 (טָרַף) * ;] rapacious: Mat.7:15, Luk.18:11; as subst., a swindler, an extortioner (MM, see word), 1Co.5:10-11 6:10.† (AS)
Full Thayer's lexicon entry
ἅρπαξ — hárpax
ἅρπαξ, ἁρπαγος, ὁ, adjective, rapacious, ravenous: Mat 7:15; Luk 18:11; as a substantive, a robber, an extortioner: 1Co 5:10; 1Co 6:10. (In both uses from (Aristophanes), Xenophon down.)
5 occurrences
Matthew (1), Luke (1), I Corinthians (3)