TDN.100:2 :ܬܗܘܐ ܐܝ݂ܬܝܗ݀ ܡܫܘܚܕܬܐ ܡܛܠ ܬܟܫܦ̈ܬܐ ܕܫܦܝܪܘ݂ܬ ܕܚܠܬܐ܂ ܘܟܘܫܐ‏ : she should be isolated for the purpose of beautifully religious supplication and quiet contemplation
See the entire entry for kawšā n.m. silence; the ascetic life