Where does “Arth Fwyaf” come from?

Arth Fwyaf (Welsh) comes from Welsh yr, from Welsh y, from Middle Welsh y, from Old Welsh ir, from Proto-Celtic sindos, from Proto-Indo-European sḗm, from Proto-Indo-European sem- — together, one.

Arth Fwyaf (Welsh): Ursa Major, the Great Bear

Definitions

  1. Ursa Major, the Great Bear

Ancestry of “Arth Fwyaf”, step by step

Arth Fwyaf traces back through two separate lines of ancestry.

via Welsh yr

StepLanguageWordMeaning
1WelshyrAlternative form of y; the; green, fresh
2Welshythe; that; which, whom
3Middle Welshyhis, its with reference to a masculine noun; triggers soft mutation of following consonant
4Old Welshirthe
5Proto-Celticsindosthis
6Proto-Indo-Europeansḗmone
7Proto-Indo-Europeansem-together, one

via Welsh arth

StepLanguageWordMeaning
1Welsharthbear
2Proto-Brythonicarθbear
3Proto-Celticartosbear
4Ancient Greekἄρτοςa cake or loaf of wheat bread; bread
Every word from Proto-Indo-European sem-