unsaddle

verb (used with object), un·sad·dled, un·sad·dling.

1. to take the saddle from.
2. to cause to fall or dismount from a saddle; unhorse.

verb (used without object), un·sad·dled, un·sad·dling.

3. to take the saddle from a horse.

verb

1. to remove the saddle from (a horse, mule, etc)
2. (tr) to unhorse