'Threshed' in the Bible

So Ruth gathered grain out in the field until dusk, and then threshed what she had gathered about a week's supply of barley.

After Boaz had finished eating and drinking to his heart's content, he went over and lay down next to the pile of threshed grain. Ruth came in quietly, uncovered his feet, and lay down.

For caraway is not threshed with a sharp sledge, nor is a cart wheel rolled over cumin. Instead, caraway is winnowed with a stick, and cumin with a rod.