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Webster 1913 Edition


Horseback

Horse′backˊ

,
Noun.
1.
The back of a horse.
2.
An extended ridge of sand, gravel, and boulders, in a half-stratified condition.
Agassiz.
On horseback
,
on the back of a horse; mounted or riding on a horse or horses; in the saddle.

The long journey was to be performed
on horseback
.
Prescott.

Webster 1828 Edition


Horseback

HORSEBACK

,
Noun.
hors'back. The state of being on a horse; the posture of riding on a horse.
I saw them salute on horseback.