Strong’s Greek
G466 — antanapleroo
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀνταναπληρόω
antanapleroo — pronounced an-tan-ap-lay-ro'-o
from 473 and 378; to supplement:--fill up. see GREEK for 473 see GREEK for 378
1 occurrence in the KJV.
Colossians 1:24
Who now rejoice in my sufferings for you, and fill up that which is behind of the afflictions of Christ in my flesh for his body’s sake, which is the church: