#0466 ἀνταναπληρόω antanapleroo {an-tan-ap-lay-ro'-o}

 from G0473 and G0378; TDNT - 6:307,867; v

—Greek Word Study (Transliteration-Pronunciation Etymology & Grammar)

 1) to fill up in turn
    1a) in Col 1:24, the meaning is, 'what is wanting in the
        afflictions of Christ to be borne by me, that I supply in
        order to repay the benefits which Christ conferred on me by
        filling up the measure of the afflictions laid upon me'.

—Thayer's (New Testament Greek-English Lexicon)

—Strong's (Greek Dictionary of the New Testament)

—NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries

 AV - fill up 1; 1

—Exhaustive Concordance (KJV Translation Frequency & Location)