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o'n

I was (contraction of oeddwn)

VerbA2

"o'n" means "I was (contraction of oeddwn)" in Welsh (verb). Mutation forms: Treiglad Llaes → ho'n.

Mutation forms

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

MutationForm
Base formo'n
Treiglad Llaesho'n

"o'n" in context

Mae o'n hunanol iawn.

He's really selfish.

A2

Mae o'n byw yn ei gar.

He lives in his car.

A1

Mae o'n casáu Nancy.

He hates Nancy.

A2

Mae o'n dalach na'i frawd.

He is taller than his brother.

B1

Ydy o'n hoffi Siapan?

Does he like Japan?

A1

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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to lead

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to govern

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