tsir.ah denotes the agent sent ahead to drive out peoples and bring about their defeat.

Across the supplied verses, the term denotes an agent sent ahead or among opposing peoples to drive them out or cause those remaining and hiding to perish.

1. An agent sent to expel opposing peoples · dominant

   The same feminine singular absolute noun occurs in each verse within a sending clause. In Exodus 23:28 the APB renders that the agent is sent before Israel and drives out named peoples; in Deuteronomy 7:20 it is sent among them until those who remain or hide perish; and in Joshua 24:12 it is sent ahead and drives out the two Amorite kings.

   Exodus 23:28Deuteronomy 7:20Joshua 24:12

In the Anselm Project Bible: In all three verses, the APB presents the term as "the hornet" within statements of sending and driving out. The surrounding actions confirm the clause-level presentation rather than establish a separate rendering nuance.