Kale (noun)

1. A hardy cabbage with curly leaves that is rich in vitamins and minerals.
2. The leaves of this plant used as a vegetable.

Origin:

Middle english kale, from old english cāl, cæl; akin to old high german chāla kale, old english cēlan to cool.

Examples:

1. Kale is a popular ingredient in healthy smoothies.
2. I like to add kale to my salad for some extra vitamins.
3. Kale chips are a delicious and healthy snack.
4. Kale is a cool-season crop that can tolerate frost.
5. Kale is a member of the Brassica family, along with broccoli and cauliflower.