diakatharizo describes clearing a threshing floor as grain is gathered and chaff is burned.

The sole attested use describes the future clearing of a threshing floor in a scene that separates gathered grain from chaff marked for burning.

1. Clearing a threshing floor for separation · dominant

   In Matthew 3:12, the future active indicative form occurs in the clause about a threshing floor, followed by gathering grain into a storehouse and burning chaff. The APB renders the clause "he will clear out his threshing floor," presenting the action within that separation scene.

   Matthew 3:12

In the Anselm Project Bible: In Matthew 3:12, the APB renders the clause "he will clear out his threshing floor." This rendering is read in the context of the verse's gathering of grain and burning of chaff.