Here's how it's pronounced:
Arglwydd: (ar-GLUHD)
* ar: Similar to the "ar" in "car"
* GLUHD: The "g" is soft, like the "g" in "gem". The "d" is pronounced like the "d" in "day".
arwain: (ar-VINE)
* ar: Same as above.
* VINE: The "v" is like the "v" in "vine". The "n" is pronounced clearly.
anialwch: (an-ee-AL-ooch)
* an: Like the "an" in "can"
* ee: Like the "ee" in "see"
* AL: Like the "al" in "call"
* ooch: Like the "oo" in "moon", with a slight "ch" sound at the end, similar to the "ch" in "loch".
Putting it all together:
(ar-GLUHD ar-VINE an-ee-AL-ooch)
Note: Welsh pronunciation can be challenging for non-native speakers, and there might be regional variations. Listening to a native speaker is the best way to get the correct pronunciation. You can find recordings of Welsh phrases online or in language learning resources.