ka.tash describes pounding or grinding a fool in a mortar in Proverbs 27:22.

The attested use describes forcefully working a fool in a mortar with a pestle; Proverbs 27:22 states that this action does not remove his folly.

1. Pounding in a mortar · dominant

   In Proverbs 27:22, the Qal imperfect second masculine singular form occurs in the conditional action of working a fool in a mortar with a pestle. The APB renders the clause, "Though you grind a fool in a mortar with a pestle," while the verse says his folly will not depart.

   Proverbs 27:22

In the Anselm Project Bible: In Proverbs 27:22 the APB presents the action as "grind a fool in a mortar with a pestle." This rendering confirms the verse's mortar-and-pestle action without isolating each English word to the Hebrew form.