Strong’s Greek
G1516 — eirenikos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
εἰρηνικός
eirenikos — pronounced i-ray-nee-kos'
from 1515; pacific; by implication, salutary:--peaceable. see GREEK for 1515
2 occurrences in the KJV.
Hebrews 12:11
Now no chastening for the present seemeth to be joyous, but grievous: nevertheless afterward it yieldeth the peaceable fruit of righteousness unto them which are exercised thereby.
James 3:17
But the wisdom that is from above is first pure, then peaceable, gentle, and easy to be intreated, full of mercy and good fruits, without partiality, and without hypocrisy.