IPA: /ˈbɛrˌbæk/
KK: /ˈbɛrˌbæk/
Riding or being on a horse without a saddle.
She prefers to ride bareback because it feels more natural.
Riding on a horse or other animal without a saddle.
She prefers to ride bareback during her lessons.
Bareback → The word is formed from "bare" (from Old English "bær", meaning uncovered or naked) and "back" (from Old English "bæc", meaning the rear part of the body). The term "bareback" refers to riding a horse without a saddle, thus being uncovered on the back.
Think of being 'uncovered' ('bare') on the 'back' — that's why bareback means riding without a saddle.