du.ach denotes washing burnt offerings and cleansing away defilement or blood.

The attested use most often concerns washing a burnt offering in designated places; it also occurs where filth and blood are removed and in a hostile sequence rendered with rinsing.

1. Washing a burnt offering · dominant

   In 2 Chronicles 4:6, the Hiphil imperfect plural occurs with basins made for washing the work of the burnt offering; the APB renders the surrounding clause “for washing in them the work of the burnt offering.” In Ezekiel 40:38, the same Hiphil imperfect plural stands in the clause locating where the burnt offering shall be washed.

   2 Chronicles 4:6Ezekiel 40:38
2. Cleansing away what defiles · occasional

   In Isaiah 4:4, the Hiphil imperfect singular occurs where the LORD removes the filth of Zion's daughters and Jerusalem's blood; the APB renders this “washes away.” In Jeremiah 51:34, the Hiphil perfect singular appears within Babylon's hostile actions, which the APB concludes with “he has rinsed.”

   Isaiah 4:4Jeremiah 51:34

In the Anselm Project Bible: The APB uses washing language for the offering contexts and “washes away” for the removal of filth and blood; it uses “rinsed” in Jeremiah 51:34. These renderings confirm the clauses' overall presentation rather than fixing a separate English equivalent in every case.