Strong's #2569: kalopoieo (pronounced kal-op-oy-eh'-o)
from 2570 and 4160; to do well, i.e. live virtuously:--well doing.
Thayer's Greek Lexicon:
́
kalopoieō
1) to do well, act uprightly
Part of Speech: verb
Relation: from G2570 and G4160
Usage:
This word is used 1 times:
2 Thessalonians 3:13: "ye, brethren, be not weary in well doing."