GregOr 41 63.9.5 :ܐܦܠܐ ܓܝܪ ܦܐܝܐ ܗܘܬ ܕܢܗܘܐ ܚܣܝܪ ܐܡܬܝ ܕܗܘ‏ : for moreover it would not be proper for it ever to be missing
See the entire entry for ˀimmattī, ˀimmaṯ conj. when, whenever