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methu

to fail

VerbB1/ˈmɛθɨ̞/

“methu” means “to fail” in Welsh (verb). Pronounced /ˈmɛθɨ̞/. Mutation forms: Treiglad Meddal → fethu.

Mutation forms

In Welsh, the first letter of “methu” changes depending on the grammatical context. These are the mutated forms:

MutationForm
Base formmethu
Treiglad Meddalfethu

“methu” in context

Dw i methu aros yma heno.

I can't stay here tonight.

A1

Dw i methu nofio.

I can't swim.

A1

Dw i methu yfed coffi heb siwgr.

I can't drink coffee without sugar.

A2

Dwi i'n methu cysgu rwan.

I can't sleep now.

B2

Do'n i methu gwneud dim ar y pryd.

I couldn't do anything at that time.

A2

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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Related Welsh words

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to run

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is (question/3rd) (variant of ydy)

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to study

addysgu

to educate

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to examine

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to deliver

cysylltu

to add

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