IshExod 50:7 :ܡܛܠ ܚܘܣܝܐ ܕܡܬܬܓܪ ܗܘܐ ܒܡܨܥܝܘܬܐ ܒܥܐܕܐ ܕܚܘܣܝܐ‏ : because of the reconciliation achieved by such a means at the feast of reconciliation
See the entire entry for bmeṣˁāyūṯā adv. by such a means