Strong's G4942 — συνυποκρίνομαι (verb)
sunupokrinomai (soon-oo-pok-rin'-om-ai) v.
1. to act hypocritically in concert with
[from G4862 and G5271]
KJV: dissemble with 
Root(s): G4862, G5271 
Hebrew root: ὑποκρίνομαι
Occurrences: 1