piaffer

/piˈæfər/
noun
  1. A dressage movement in which a horse trots in place with high, springy steps, without moving forward.
    • The judge praised the mare's piaffer for its rhythm and elevation.
    • The rider asked the horse to perform a piaffer in the center of the arena.
    • In advanced dressage, the piaffer demonstrates the horse's collection and balance.