Extended Strong's Greek Lexicon (Abbott-Smith based)
to reconcile
Usage: ἀπο-κατ-αλλάσσω (cf. καταλλάσσω: ἀπό here signifies completely, see Lft., Col., l.with; Ellic., Eph., l.with; but also Mey., Eph., l.with), to reconcile completely: Eph.2:16, Col.1:20-21.† (AS)