Strong's G4068 — περπερεύομαι (verb)
perpereuomai (per-per-yoo'-om-ai) v.
1. to boast
[middle voice from perperos (braggart, perhaps by reduplication of the base of G4008)]
KJV: vaunt itself 
Root(s): G4008 
Hebrew root: πέραν
Occurrences: 1