Strong’s Greek
G2677 — katartismos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
καταρτισμός
katartismos — pronounced kat-ar-tis-mos'
from 2675; complete furnishing (objectively):--perfecting. see GREEK for 2675
1 occurrence in the KJV.
Ephesians 4:12
For the perfecting of the saints, for the work of the ministry, for the edifying of the body of Christ: