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deiseb

petition

NounFeminine (benywaidd)C2/ˈdei̯sɛb/

"deiseb" means "petition" in Welsh (feminine noun). Pronounced /ˈdei̯sɛb/. Mutation forms: Treiglad Meddal → ddeiseb, Treiglad Trwynol → neiseb.

Mutation forms

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

MutationForm
Base formdeiseb
Treiglad Meddalddeiseb
Treiglad Trwynolneiseb

"deiseb" in context

Yr wythnos diwethaf, cyflwynwyd deiseb gyda channoedd o lofnodion i gyngor Merthyr Tudful yn galw am sefydlu ysgol uwchradd Gymraeg o fewn y bwrdeistref.

Last week, a petition of hundreds of signatures was presented to Merthyr Tydfil council, calling for the establishment of a Welsh-medium school within the borough.

C1

Fe wnes i gyflwyno deiseb i Bwyllgor Deisebau'r Senedd tua phedair blynedd yn ôl, ychydig cyn i mi ddod yn Aelod o'r Senedd, a oedd yn dweud, 'Bysiau i bobl nid er elw'.

I delivered a petition to the Senedd's Petition Committee about four years ago, just before I became a Member of the Senedd, saying, 'Buses for people not profit'.

C2

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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