blas.blas.
HomeArchiveResearch
Tables
blas.blas.

ar

on

PrepositionA1

"ar" means "on" in Welsh (preposition). Mutation forms: Treiglad Llaes → har.

Mutation forms

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

MutationForm
Base formar
Treiglad Llaeshar

"ar" in context

Doedd bron ddim arian ar ôl.

There was scarcely any money left.

B1

Roedd y tywysog ar goll yn y goedwig.

The prince was lost in the woods.

B2

Mae yna ddwy gath yn cysgu ar y gwely.

There are two cats sleeping on the bed.

B1

Cyflwyna dy waith cartref ar ddydd Llun.

Submit your homework on Monday.

B2

Cyflwynwch eich gwaith cartref ar ddydd Llun.

Submit your homework on Monday.

B1

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 →

Learn "ar" and 3,000+ Welsh words

blas. teaches vocabulary with spaced repetition — including mutation drilling, example sentences, and pronunciation. Free to start.

Start learning Welsh

Related Welsh words

i

to/in

o

from/of

am

about/for

gan

with/by

gyda

with

heb

without

dan

under

dros

over/for

blas.
Learn WelshBlogPrivacy