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deilen

a leaf

NounFeminine (benywaidd)C2/ˈdei̯lɛn/

"deilen" means "a leaf" in Welsh (feminine noun). Pronounced /ˈdei̯lɛn/. Mutation forms: Treiglad Meddal → ddeilen, Treiglad Trwynol → neilen.

Mutation forms

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

MutationForm
Base formdeilen
Treiglad Meddalddeilen
Treiglad Trwynolneilen

"deilen" in context

Fel deilen yn yr hydrefwynt.

Like a leaf in the autumn breeze.

B2

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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world

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yew tree; also 'is'

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air

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