Strong's G4859 — σύμφωνος (adjective)
sumphonos (soom'-fo-nos) adj.
1. sounding together (alike)
2. (figuratively) accordant (neuter as noun, agreement)
[from G4862 and G5456]
KJV: consent 
Root(s): G4862, G5456 
Hebrew root: φωνή
Occurrences: 1