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achosi

to cause

VerbA1/aˈχɔsi/

“achosi” means “to cause” in Welsh (verb). Pronounced /aˈχɔsi/. Mutation forms: Treiglad Llaes → hachosi.

Mutation forms

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

MutationForm
Base formachosi
Treiglad Llaeshachosi

“achosi” in context

Beth sydd fel arfer yn achosi'r boen?

What usually causes the pain?

B1

Mae hyn wedi achosi pryder gwirioneddol yn lleol.

This has caused real concern locally.

B2

Felly, mae swyddogion safonau masnach yn defnyddio'r pwerau hynny i ymchwilio i'r rhai sy'n achosi colledion ariannol a gofid, ac i gymryd camau yn eu herbyn.

So, trading officers are using those powers to investigate and take action against those who cause financial loss and distress.

C1

O ran cynllunio, ymddengys fod problem fawr o ran cynlluniau datblygu lleol sydd wedi dyddio, ac mae hyn yn achosi problemau oherwydd bod cwmnïau adeiladu yn cael eu gadael yn teimlo'n ansicr iawn.

In terms of planning, there seems to be a major issue in terms of local development plans being out of date, and this causes problems because building companies are left in a state of uncertainty.

C1

Mae'r arferion hyn yn achosi dioddefaint ac ni ellir caniatáu iddynt barhau.

These practices cause suffering and cannot be allowed to continue.

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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Related Welsh words

cofio

to remember

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to be

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to get

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to see

meddwl

to think (also: to mean)

gwybod

to know

ystyried

to consider

golygu

to view

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