(For he that wrought effectually in Peter to the apostleship of the circumcision, the same was mighty in me toward the Gentiles:)
G1754 · ἐνεργέω (energeo)
To be active, efficient. KJV renderings: do, (be) effectual (fervent), be mighty in, shew forth self, work (effectually in).
Greek · Verb · Strong 1890