"Un horsing" refers to the act of knocking someone off a horse or causing them to fall off while riding. There are several synonyms for this term, including unhorsing, dismounting, unseating, and unbalancing. Each one describes a different aspect of the action, with "unhorsing" focusing on the idea of removing someone from their mount, "dismounting" indicating a planned or deliberate dismount, "unseating" suggesting an unexpected or forceful removal, and "unbalancing" highlighting the loss of balance that often accompanies a fall from a horse. Whatever term is used, the result is the same: the rider has been separated from their mount and must regain their footing.