"Cadw neu ddileu?"

Translation: Save or delete?

[Dan443898]

Sounds like the title of a gameshow.

[AnCatDubh]

Does neu trigger soft mutation?

[EllisVaughan]

Yes.

[q3DyeyIO]

Dileu is only mutated because, here, it is used as a verb noun -see ‘Tips’.
If ‘dileu’ was used in another verb form it would not be mutated - again see ‘Tips’ again.

[paul904577]

Why is 'saving or deleting?' wrong?

[CliveBradl2]

I read that as Keep or Delete. What about achub?

[EllisVaughan]

In the context of saving a document, 'cadw' is the verb of choice. 'Achud' is more 'To save a life'/'To save someone from danger'. 'To save money' is 'Arbed'.