Strong's G720 — ἀρνέομαι (verb)
arneomai (ar-neh'-om-ai) v.
1. to contradict (by saying)
2. (concretely) to deny
3. (by implication) to disavow, reject, renounce, or disown
[perhaps from G1 (as a negative particle) and the middle voice of G4483]
KJV: deny, refuse 
Root(s): G1, G4483 
Hebrew root: ῥέω
Occurrences: 33