horseback

[hawrs-bak]

noun

1. the back of a horse.

2. Geology.,  a low, natural ridge of sand or gravel; an esker.

adverb

1. on horseback.

   to ride horseback.

adjective

1. made or given in a casual or speculative way; approximate or offhand.

   a horseback estimate on the construction costs.

horseback

/ ˈhɔːsˌbæk /

noun

1. 1. a horse's back (esp in the phrase on horseback )

   2. ( as modifier )

      horseback riding

Word History and Origins

Origin of horseback¹

1350–1400; Middle English. See horse, back ¹

Example Sentences

A water cannon was deployed but not used, while officers on horseback and a dog unit also attended.

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Thousands flock to its parade of cowboys on horseback, antique cars and floats featuring oil pumps -- a hat tip to the Wild West of yore.

Read more on Barron's

A horseback riding accident and a car accident.

Read more on The Wall Street Journal

“We provide the same service that you would get out of a black-and-white car, but on horseback,” Hubbard said.

Read more on Los Angeles Times

These demons gallop through the country on horseback, eagerly waging war with sanity, facts and anyone who scares them — which is pretty much the whole world.

Read more on Salon