Abbott-Smith Manual Greek Lexicon
δι-αλλάσσω (G1259)
1 δι-αλλάσσω [in LXX: I Ki 29:4 ( רָצָה hithp.), I Es 4:31 , al. ;] to change, exchange . to change enmity for friendship, to reconcile : pass., c. dat. pers., Mt 5:24 . "The word denotes mutual concession after mutual hostility, an idea absent from καταλλ- ," q.v. (Lft., Notes , 288; cf. Deiss., LAE , 178 15 ; Cremer, 91, 632).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain