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'.
Greek lexicon based on Thayer's and Smith's Bible Dictionary plus others; this is keyed to the large Kittel and the "Theological Dictionary of the New Testament." These files are public domain.
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