Eastons Bible Dictionary
—(Heb. harits), a tribulum or sharp threshing sledge; a frame armed on the under side with rollers or sharp spikes (2 Sam. 12:31;
1 Chr. 20:3).
Heb. verb sadad,
to harrow a field, break its clods (Job 39:10;
Hos. 10: 11). Its form is unknown. It may have resembled the instrument still in use in Egypt.