See the entire entry for sḥy vb. to bathe

TgO Lev16:28 :יְצַבַע לְבֻושוֹהִי וְיַסחֵי יָת בִסרֵיה : he must launder his clothing and wash his flesh

See the entire entry for ṣbˁ vb. to moisten; to dye