Where does “Arthur” come from?

Arthur (Cebuano) comes from English Arthur, from Middle English Arthure, from Latin Arthurus, from Welsh arth, from Proto-Brythonic arθ, from Proto-Celtic artos, from Ancient Greek ἄρτος — a cake or loaf of wheat bread; bread.

Ancestry of “Arthur”, step by step

StepLanguageWordMeaning
1EnglishArthurGuinness stout
2Middle EnglishArthure
3LatinArthurus
4Welsharthbear
5Proto-Brythonicarθbear
6Proto-Celticartosbear
7Ancient Greekἄρτοςa cake or loaf of wheat bread; bread
Every word from Ancient Greek ἄρτος