Where does “Breten Vyghan” come from?
Breten Vyghan (Cornish) comes from Cornish Breten, from Proto-Brythonic Pritanī, from Proto-Celtic *Kʷritanī, from Proto-Indo-European kʷer- — to do; to make; to build.
Ancestry of “Breten Vyghan”, step by step
Breten Vyghan traces back through two separate lines of ancestry.