Strong's G2554 — κακοποιέω (verb)
kakopoieo (kak-op-oy-eh'-o) v.
1. to be a bad-doer
2. (objectively) to injure
3. (genitive) to sin
[from G2555]
KJV: do(ing) evil 
Root(s): G2555 
Hebrew root: κακοποιός
Occurrences: 4