horseback
noun
- back of a horse
adverb
- on a horse's back
Wiktionary
Pronunciation: /ˈhɔɹsˌbæk/ / /ˈhɔːsˌbæk/
adv
Etymology: From Middle English horsebacke, horsebak, horsbak, equivalent to horse + back.
- On the back of a horse.
noun
Etymology: From Middle English horsebacke, horsebak, horsbak, equivalent to horse + back.
- The back of a horse.
“They came on horseback across the plains.”
- A ridge of sand, gravel, and boulders.