Where does “Prydwen” come from?

Prydwen (Middle Welsh) comes from Middle Welsh gwyn, from Proto-Brythonic gwɨnn, from Proto-Celtic windos, from Proto-Indo-European windo-, from Proto-Indo-European weyd- — to see.

Ancestry of “Prydwen”, step by step

Prydwen traces back through two separate lines of ancestry.

via Middle Welsh gwyn

StepLanguageWordMeaning
1Middle Welshgwynwhite
2Proto-Brythonicgwɨnnwhite
3Proto-Celticwindoswhite
4Proto-Indo-Europeanwindo-—
5Proto-Indo-Europeanweyd-to see

via Middle Welsh pryd

StepLanguageWordMeaning
1Middle Welshpryd—
2Proto-Brythonicprɨdshape, form; time
3Proto-Celtickʷritusform
4Proto-Indo-Europeankʷer-to do; to make; to build
Every word from Proto-Indo-European weyd- →Every word from Proto-Indo-European windo- →Every word from Proto-Celtic windos →