Tit 3:5 :ܐܲܚܝܲܢ ܒ݁ܲܣܚܵܬ݂ܵܐ ܕ݁ܡܲܘܠܵܕ݂ܵܐ ܕ݁ܡܸܢ ܕ݁ܪܼܝܫ‏ : he revived us by the washing of renewed birth
See the entire entry for sḥāṯā n.f. washing