user
"defnyddiwr" means "user" in Welsh (masculine noun). Pronounced /dɛvˈnəðjʊr/. Mutation forms: Treiglad Meddal → ddefnyddiwr, Treiglad Trwynol → nefnyddiwr.
In Welsh, the first letter of "defnyddiwr" changes depending on the grammatical context. These are the mutated forms:
| Mutation | Form |
|---|---|
| Base form | defnyddiwr |
| Treiglad Meddal | ddefnyddiwr |
| Treiglad Trwynol | nefnyddiwr |
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