offsaddle
/ˈɒfsædəl/Definitions
1. verb
to fall or slip off a horse, especially to one side
“The rider offsaddled at the first sign of trouble.”
2. verb
to become dismounted or fall from a horse
“The horseman offsaddled when his mount stumbled on the rocky terrain.”
3. noun
the act of falling or slipping off a horse
“The offsaddle was a nasty one, and the rider was lucky to escape unscathed.”