P Sirach 1:6 :ܘܛܡ݂ܪ̈ܝ ܣܟܘ݂ܠܬ݂ܢܘܬܐ ܡܢ݂ܘ ܝܕܥ‏ : who knows the secrets of intelligence?
See the entire entry for *ṭmar, ṭemrā n.m. hidden thing