Lexical Definition

‎πορνεύω‎ porneúō (porn-yoo'-o) to sin sexually G:V
from ‎πόρνη‎

commit (fornication).

Usage: 16 forms in 25 verses
Form Translated As     In Verse(s)
ἐπόρνευσαν committed sexual immorality 1Cor.10.8Rev.17.2Rev.18.3
πορνεῦσαι to commit sexual immorality Rev.2.14Rev.2.20
πορνεύων one whoring LXX.Deut.23.17
sinning sexually 1Cor.6.18
πορνεύωμεν shall we commit sexual immorality 1Cor.10.8
πορνεύσωσι they should commit harlotry LXX.Hos.4.14
πορνεύσουσιν they shall commit harlotry LXX.Ezek.16.34
πορνεύσησ should you commit harlotry LXX.Hos.3.3
πορνεύσει shall commit harlotry LXX.Amos.7.17
πορνεύσαντεσ having committed sexual immorality Rev.18.9
πορνεύσαι her committing harlotry LXX.Jer.3.7
πορνεύοντεσ ones committing harlotry LXX.Hos.4.18
πορνεύοντα committing harlotry LXX.Ps.73.27
επόρνευσεν she committed harlotry LXX.Jer.3.6
επόρνευσε committed harlotry LXX.Jer.3.8
επόρνευσασ you committed harlotry LXX.Ezek.16.15LXX.Ezek.23.19
you went whoring LXX.Hos.9.1
επόρνευσαν they committed harlotry LXX.1Chr.5.25LXX.Ps.106.39LXX.Ezek.23.3LXX.Hos.4.10

Abbott-Smith

πορνεύω, [in LXX for זנה;]
1. to prostitute the body for hire.
2. to commit fornication: Mk 10:19 (WH, mg), I Co 6:18 10:8, Re 2:14, 20. Metaph. (as in LXX: I Ch 5:25, Je 3:6, Ho 9:1, al.), of idolatry (but v. Swete, Ap., 180 f.), Re 17:2 18:3, 9 (cf. ἐκ-πορνεύω).†

Abbott-Smith References

Book Refs
1 Chronicles 5:25
Jeremiah 3:6
Hosea 9:1
Mark 10:19
1 Corinthians 6:18 · 10:8
Revelation 2:14 · 2:20 · 17:2 · 18:3 · 18:9

Liddell-Scott-Jones

πορνεύω-εύω,

prostitute, mostly in passive, of a woman, prostitute herself, be or become a prostitute, [Refs 5th c.BC+]; of a man, [Refs 4th c.BC+]

__II intransitive in active, = passive, [LXX+3rd c.BC+]fornicate, [NT]
__II.2 metaphorically, practise idolatry, [LXX]

LSJ Scripture Refs: LXX.Deut.23.171Cor.6.18LXX.1Chr.5.25