Where does “Fowydh” come from?

Fowydh (Cornish) comes from Cornish gwydh, from Proto-Brythonic gwɨð, from Proto-Celtic widus, from Proto-Indo-European h₁weydʰh₁-, from Proto-Indo-European dwi-, from Proto-Indo-European dwóh₁ — two.

Ancestry of “Fowydh”, step by step

Fowydh traces back through two separate lines of ancestry.

via Cornish gwydh

StepLanguageWordMeaning
1Cornishgwydhtrees
2Proto-Brythonicgwɨðwood, trees
3Proto-Celticwiduswood, trees
4Proto-Indo-Europeanh₁weydʰh₁-to separate, divide
5Proto-Indo-Europeandwi-two; apart, asunder
6Proto-Indo-Europeandwóh₁two

via Cornish fow

StepLanguageWordMeaning
1Cornishfowbeech trees
Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Indo-European dwi- →Every word from Proto-Indo-European h₁weydʰh₁- →