"Ydy, mae e eisiau yfed te."

Translation: Yes, he wants to drink some tea.

[Pau_B]

What is the difference between "ydw" and "ydy"?

[EllisVaughan]

Ydw is used for the first person so "Ydw i" and ydy is the north walian third person so "Ydy o/e/hi"

[Pau_B]

Oh, I see", that's what I thought. Does "o" mean "it"?

[BenOwen]

'O' is the North Walian equivalent of 'e'. It's used identically.

[Pau_B]

Oh, right, diolch!

[bsittler]

There's an erroneous extra space in the "other" answer which is otherwise identical to the answer I gave