Cymru (English)
Where does "Cymru" come from?
The name Cymru traces back to the Proto-Brythonic term *kömroɣ, meaning 'compatriot' or 'fellow countryman'. This reflects a deeper Proto-Celtic foundation combining a prefix for 'together' with *mrogis, a word for 'region' or 'border' that stems from the Proto-Indo-European *mórǵs. Ultimately, the name captures the historical identity of the Welsh as a people sharing the same territory, serving as a linguistic cousin to names like Cumbria and Cambria.
Full etymology tree
- Cymru (English), 'Synonym of Wales: a constituent country of the United Kingdom.'
- borrowed Cymru (Welsh), 'Wales (a constituent country of the United Kingdom)'
- inherited Kymry (Middle Welsh)
- inherited *kömroɣ (Proto-Brythonic), 'compatriot, comrade'
- compound *kom- (Proto-Celtic), 'with, together'
- compound *mrogis (Proto-Celtic), 'border, borderland, march, mark'
- inherited *mórǵs (Proto-Indo-European), 'boundary, border'
- derived mārki (Hittite)
- inherited *mórǵs (Proto-Indo-European), 'boundary, border'
- inherited *kömroɣ (Proto-Brythonic), 'compatriot, comrade'
- inherited Kymry (Middle Welsh)
- borrowed Cymru (Welsh), 'Wales (a constituent country of the United Kingdom)'
Direct ancestors
Updated July 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris