from The American Heritage® Dictionary of the English Language, 4th Edition
- A region of western Antarctica east of the Amundsen Sea. It was discovered and claimed for the United States by Richard E. Byrd in 1929.
Sorry, no etymologies found.
While the yam is native to Africa and Asia, the sweet potato is indigenous to tropical America, and it is the true sweet potato, Ipomoea batatus, that has played a significant and versatile role in Mexican cooking.
The plant in question is Ipomoea batatus, the true sweet potato, as distinguished from the yam, another species completely, called dioscorea.