CPA Rom7:4 :ܐܬܘܢ ܟܕܢ ܡܝ̈ܬܘܢ ܠܢܝܡܘܣܐ ܒܬܪܥ ܦܘܓܪܗ ܕܡܫܝܚܐ‏ : you then have died to the law though the dead body of the Messiah
See the entire entry for btrˁ prep. through, by means of