Addai.26.16 :ܘܐܝܩܐ ܗܘ ܬܟܒܝܢ ܩܠܝܟ̈ܘܢ ܣܪ̈ܝܩܐ‏ : it is vain to exert your hollow voice
See the entire entry for ˀēqē adv. in vain, without cause