Bronco (noun)

1. A small, wild or unbroken horse.
2. A type of horse that is known for its endurance, spirit and strength.

Origin:

Mid 19th century: from spanish, literally "rough, unbroken horse", from bronco "wild, rough", from latin bronchus "windpipe".

Examples:

1. He rode the bronco in the rodeo competition.
2. The cowboy tried to tame the wild bronco.
3. The bronco was known for its wild and unpredictable nature.
4. The bronco was a beautiful animal with a strong and powerful build.
5. He had to be careful when riding the bronco, as it could be quite dangerous.