CPA IICor6:5 :ܒܠܐ̈ܘܢ ܒܫܗܪ̈ܝܢ ܒܨܘ̈ܡܝܢ‏ : with toils, with vigils, and with fasts
See the entire entry for leˀū, leˀwtā n.f. work, labor