AphDem9.176:15 :ܡܣܟܪ ܐ̈ܕܢܘܗܝ ܘܠܐ ܥܐܠܢ ܠܠܒܗ‏ : he stops up his ears and they do not enter his heart
See the entire entry for skr vb. to close up, shut