chestnut
"castan" means "chestnut" in Welsh (feminine noun). Pronounced /ˈkasdan/. Mutation forms: Treiglad Meddal → gastan, Treiglad Trwynol → nghastan, Treiglad Llaes → chastan.
In Welsh, the first letter of "castan" changes depending on the grammatical context. These are the mutated forms:
| Mutation | Form |
|---|---|
| Base form | castan |
| Treiglad Meddal | gastan |
| Treiglad Trwynol | nghastan |
| Treiglad Llaes | chastan |
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