Lag(394) John18:28 :ܕܠܐ ܝܣ̈ܬܐܒܘܢ ܐܠܐ ܝܐܟ̈ܘܠܘܢ ܦ̈ܣܚܐ‏ : that they not be made unclean but eat the Passover
See the entire entry for sˀb vb. D to defile, to dirty