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glastwreiddio

to water down

Verbdict/ˌɡlastʊˈrei̞ðjɔ/

"glastwreiddio" means "to water down" in Welsh (verb). Pronounced /ˌɡlastʊˈrei̞ðjɔ/. Mutation forms: Treiglad Meddal → lastwreiddio, Treiglad Trwynol → nglastwreiddio.

Mutation forms

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

MutationForm
Base formglastwreiddio
Treiglad Meddallastwreiddio
Treiglad Trwynolnglastwreiddio

"glastwreiddio" in context

Byddai hyn yn helpu Llywodraeth Cymru i gyflawni ei huchelgais sero net erbyn 2050, ac rwy'n dal yn aneglur sut y mae Llywodraeth Cymru yn disgwyl gwneud hynny bellach gyda'r cynigion hyn wedi'u glastwreiddio.

This would help the Welsh Government achieve its 2050 net-zero ambition, and I am still unclear as to how the Welsh Government now expects to do that with these watered down proposals.

B2

Ond yr hyn y mae fy etholwyr yn ei gael yw fersiwn wedi'i chrebachu a'i glastwreiddio'n helaeth o'r hyn a addawyd iddynt yn wreiddiol. [ Torri ar draws. ] Iawn, rwy'n barod iawn i dderbyn ymyriad.

But what my constituents are getting is a drastically scaled and watered-down version of what they were originally promised. [ Interruption .] Yes, I would be more than happy to take an intervention.

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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