Where does “Griffith” come from?

Griffith (English) comes from Welsh Gruffudd, from Middle Welsh Gripiud, from Proto-Brythonic Grifujʉð, from Proto-Brythonic grif, from Latin gryphus, from Ancient Greek γρύψ — griffin.

Ancestry of “Griffith”, step by step

StepLanguageWordMeaning
1WelshGruffuddborne by ancient kings of Wales
2Middle WelshGripiud—
3Proto-BrythonicGrifujʉð—
4Proto-Brythonicgrif—
5LatingryphusAlternative form of gryps; griffin
6Ancient Greekγρύψgriffin
Every word from Ancient Greek γρύψ →Every word from Latin gryphus →Every word from Proto-Brythonic grif →