Extended Strong's Greek Lexicon (Abbott-Smith based)
to settle accounts
Usage: συν-αίρω [in LXX: Exo.23:5 (עָזַב) * ;] to take up together: σ. λόγον (of which there are several exx. in π.; see Deiss., LAE, 118 f.; MM, i, xxiv; M, Pr., 160), to settle accounts, Mat.18:23-24; before μετά, C. genitive of person(s), Mat.25:19.† (AS)