Strong's G4203 — πορνεύω (verb)
porneuo (porn-yoo'-o) v.
1. to act the prostitute
2. (literally) indulge unlawful lust (of either sex)
3. to stimulate unwedded sexual desire
4. (figuratively) practice idolatry
[from G4204]
KJV: commit (fornication) 
Root(s): G4204 
Hebrew root: πόρνη
Occurrences: 8