do, (be) effectual (fervent), be mighty in, shew forth self, work (effectually in)

Strong’s Dictionary of Greek Words:

Greek:
ἐνεργέω
Transliteration:
energeo
Phonic:
en-erg-eh’-o
Meaning:
from 1756; to be active, efficient
KJV Usage:
do, (be) effectual (fervent), be mighty in, shew forth self, work (effectually in)