Where does “Gwenhwyfar” come from?
Gwenhwyfar (Middle Welsh) comes from Old Welsh Guinhuimar, from Proto-Brythonic Gwɨnnohuɨβar, from Proto-Brythonic gwɨnn, from Proto-Celtic windos, from Proto-Indo-European windo-, from Proto-Indo-European weyd- — to see.
Ancestry of “Gwenhwyfar”, step by step