Extended Strong's Greek Lexicon (Abbott-Smith based)
to sin sexually
Usage: πορνεύω [in LXX for זָנָה ;] __1. to prostitute the body for hire. __2. to commit fornication: Mrk.10:19 (WH, mg), 1Co.6:18 10:8, Rev.2:14, 20. Metaphorical (as in LXX: 1Ch.5:25, Jer.3:6, Hos.9:1, al.), of idolatry (but see Swete, Ap., 180 f.), Rev.17:2 18:3, 9 (cf. ἐκ- πορνεύω).† (AS)