H1740. duach
[דִּיחַ דּוּחַ,] verb rinse, cleanse away by rinsing, washing (Late Hebrew Hiph`il, Aramaic Aph`el id.; compare Assyrian dî—u DlPr 177) —
Hiph`il Perfect suffix הדיחנו Kt [Jer 51:34] Qr הֱדִיחָ֑נִי but read הִדִּיחני from נדח (Hi, compare [50:17]); Imperfect3masculine singular יָדִיחַ [Isa 4:4]; [3]masculine plural יָדִיחוּ[2Chr 4:6] + [Ezek 40:38] (Co conjecture הַקָּדִים); —
1 rinse, victims to be offered in sacrifice [Ezek 40:38], Songs [2Chr 4:6] (compare above)
2 figurative cleanse by washing [Isa 4:4], of removing guilt.