Yam (noun)

A starchy root vegetable that is similar in appearance to a sweet potato, but typically has a drier, starchier flesh.

Origin:

The word "yam" comes from the west african word "nyami" which is a staple food crop. the word has been in use since the late 16th century and it refers to a starchy root vegetable that is similar in appearance to a sweet potato, but typically has a drier, starchier flesh.

Examples:

1. Yams are a staple food in many parts of West Africa.
2. He was roasting yams in the oven.
3. Yams are a good source of Vitamin C and dietary fiber.
4. I had yam porridge for breakfast.
5. Yam is a popular vegetable in many cultures.