FMSD 4.1:1 :ܒܪܡܫܐ ܕܝ ܕܫܘܒܬܐ ܗܘܘ ܡܬܟܢ̈ܫܝܢ ܠܟܢܝܫܬܐ ܘܡܫܠܡ̈ܝܢ ܩܢܘܢܐ ܕܚܕ ܒܫܘܒܐ‏ : then on Sabbath evening they would gather into the church and complete the Sunday Canon
See the entire entry for šlm vb. to be whole, complete