directory
"cyfeiriadur" means "directory" in Welsh (masculine noun). Mutation forms: Treiglad Meddal → gyfeiriadur, Treiglad Trwynol → nghyfeiriadur, Treiglad Llaes → chyfeiriadur.
In Welsh, the first letter of "cyfeiriadur" changes depending on the grammatical context. These are the mutated forms:
| Mutation | Form |
|---|---|
| Base form | cyfeiriadur |
| Treiglad Meddal | gyfeiriadur |
| Treiglad Trwynol | nghyfeiriadur |
| Treiglad Llaes | chyfeiriadur |
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