Alfalfa (noun)

A plant that is widely cultivated as forage for livestock and as a soil-improving crop.

Origin:

Late 19th century: from spanish, literally "alfalfa", from arabic al-fasfasa "the best hay".

Examples:

1. The farmer grows alfalfa to feed his cows.
2. Alfalfa is a rich source of vitamins and minerals.
3. The alfalfa fields were harvested for hay to be used for winter feed.
4. The alfalfa is used to improve soil fertility and reduce erosion.
5. The alfalfa is a popular crop for small farmers because of its adaptability to a variety of soils and climates.