IshGen 45:6 :ܠܬܟܐܝܬ ܠܒܪ̈ܝܬܐ ܒ݂ܪܐ ܩܕܡܝܬ ܘܟܢ ܠܒܪܢܫܐ‏ : fittingly He created the creatures first and then the human
See the entire entry for lāṯḵāˀīṯ adv. fittingly