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bywyn

core

NounMasculine (gwrywaidd)C2/ˈbɨ̞u̯ɨ̞n/

"bywyn" means "core" in Welsh (masculine noun). Pronounced /ˈbɨ̞u̯ɨ̞n/. Mutation forms: Treiglad Meddal → fywyn, Treiglad Trwynol → mywyn.

Mutation forms

In Welsh, the first letter of "bywyn" changes depending on the grammatical context. These are the mutated forms:

MutationForm
Base formbywyn
Treiglad Meddalfywyn
Treiglad Trwynolmywyn

Further reading

Welsh Mutations Explained — Soft, Nasal & Aspirate →Welsh Pronunciation — It's Actually Easier Than English →How to Learn Welsh as an Adult — A Step-by-Step Roadmap →Best Apps to Learn Welsh (2026) →Browse all Welsh vocabulary →

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