English 'Wales' comes from Old English Wealas meaning 'foreigners' — the Anglo-Saxons called the native Britons 'strangers in their own land', while the Welsh call themselves Cymry ('fellow countrymen'), a pointed contrast in perspective.
A country forming the western part of the island of Great Britain, part of the United Kingdom.
English 'Wales' derives from Old English 'Wealas', the plural of 'wealh' meaning 'foreigner, stranger, Celtic-speaker, Romanized person'. The word is Proto-Germanic *walhaz, originally referring to the Celtic Volcae tribe, then generalized to mean any Celtic or Romance-speaking person. The Anglo-Saxons applied it to the Brittonic-speaking inhabitants they displaced westward. 'Wales' is thus an English exonym meaning 'land of the foreigners' — from the perspective of the Anglo-Saxon newcomers who considered the native
The word 'walnut' literally means 'foreign nut' — from the same Old English 'wealh' (foreigner) that gives us 'Wales'. The Germanic peoples called the nut 'foreign' because it came from Roman (Celtic/Romance) lands. Wales, Wallonia, Wallachia, Cornwall, and walnut all preserve the same ancient Germanic word for 'those other people'.