Strong's G1514 — εἰρηνεύω (verb)
eireneuo (ei-rayn-yoo'-o) v.
1. to be (act) peaceful
[from G1515]
KJV: be at (have, live in) peace, live peaceably 
Root(s): G1515 
Hebrew root: εἰρήνη
Occurrences: 4