remount, v. & n.
--v.
1 a tr. mount (a horse etc.) again. b intr. get on horseback again.
2 tr. get on to or ascend (a ladder, hill, etc.) again.
3 tr. provide (a person) with a fresh horse etc.
4 tr. put (a picture) on a fresh mount.
--n.
1 a fresh horse for a rider.
2 a supply of fresh horses for a regiment.