ra.ad denotes trembling, explicitly describing the fear that seizes Moab's leaders in Exodus 15:15.

The attested use denotes trembling in a context of alarm: Exodus 15:15 places the noun in the report that Moab's leaders are seized by trembling. Psalm 55:6 has the same singular absolute noun form, though the APB's wording does not isolate its contribution within the speaker's request to fly away.

1. Trembling in distress or alarm · dominant

   In Exodus 15:15, the singular absolute noun occurs in the clause where the APB renders Moab's leaders as “seized by trembling,” alongside the dismay of Edom's chiefs and Canaan's inhabitants melting away. Psalm 55:6 has the same singular absolute noun form; the APB renders the verse as a request for a dove's wing to fly away and dwell, without visibly identifying the noun's specific place in that clause.

   Exodus 15:15Psalm 55:6

In the Anselm Project Bible: In Exodus 15:15, the APB explicitly includes “trembling” in the clause about Moab's leaders. In Psalm 55:6, the translation presents the speaker's wish to fly away but does not visibly isolate the noun's contribution.