from The American Heritage® Dictionary of the English Language, 4th Edition
- An island and volcanic island group of the southern Atlantic Ocean between southern Africa and southern South America. Discovered by the Portuguese in 1506, the islands were annexed by Great Britain in 1816 and are now administered as a dependency of St. Helena.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. A remote group of islands in the South Atlantic; a dependency of the British overseas territory of Saint Helena
Sorry, no etymologies found.
On the island of Tristan da Cunha in the cold South Atlantic lives that species of flightless moth, Dimorphinoctua cunhaensis, bigger than its mainland relatives.