Dismount (verb)

1. To get off of a horse or other animal that one is riding.
2. To remove something that is mounted.

Origin:

From the middle english dismounten, from the old french desmonter, from the latin dismountare, from dis- + mountare to mount.

Examples:

1. He dismounted from the horse and gave it a pat on the neck.
2. She dismounted the painting from the wall to clean it.
3. The soldiers dismounted from their tanks and set up camp.
4. After a long ride, she finally dismounted and stretched her legs.
5. The mechanic had to dismount the engine to fix the problem.