genealogy
"achyddiaeth" means "genealogy" in Welsh (feminine noun). Pronounced /aˈχəðjaɨ̯θ/. Mutation forms: Treiglad Llaes → hachyddiaeth.
In Welsh, the first letter of "achyddiaeth" changes depending on the grammatical context. These are the mutated forms:
| Mutation | Form |
|---|---|
| Base form | achyddiaeth |
| Treiglad Llaes | hachyddiaeth |
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