du.mah denotes the state associated with the dead and with a soul that would dwell there without the LORD’s help.

The two verses use the noun for a state associated with those who go down among the dead and with the place where the psalmist’s soul would soon dwell without the LORD’s help.

1. The state associated with death · dominant

   In Psalm 115:17, the singular absolute noun occurs in the clause about the dead, who do not praise the LORD and who “go down into silence.” In Psalm 94:17, the psalmist says that without the LORD’s help his soul would soon have “dwelt in silence,” placing the same state in a threatened personal outcome.

   Psalm 115:17Psalm 94:17

In the Anselm Project Bible: The APB presents the relevant clause with “silence” in both Psalm 115:17 and Psalm 94:17. It confirms the verses’ shared setting without isolating every contribution of the noun.