How do you say thankyou in welsh?

There are a few ways to say thank you in Welsh, depending on the context and level of formality:

Formal:

* Diolch yn fawr (dee-olch in vour) - This is the most common and formal way to say thank you. It literally translates to "Thank you very much".

Informal:

* Diolch (dee-olch) - This is the simple and informal way to say thank you.

* Diolch yn fawr iawn (dee-olch in vour ee-awn) - This is a slightly more emphatic way to say thank you, similar to saying "thank you very much" in English.

* Diolch o galon (dee-olch oh gal-on) - This means "thank you from the heart" and is a very heartfelt way to express gratitude.

You can also add "i chi" (ee kee) meaning "to you" after any of these phrases to make it more polite:

* Diolch yn fawr i chi

* Diolch i chi

* Diolch yn fawr iawn i chi

* Diolch o galon i chi

The choice of which phrase to use depends on the situation and your relationship with the person you are thanking.