dydd Iau
/ˌdɨːð ˈjaɨ̯/masculine
Thursday in Welsh is dydd Iau.
dydd Iau is a masculine noun used to refer to the day of the week.
Meaning: day of the week (noun)
What does it mean word for word?
The phrase is composed of dydd, meaning 'day' and Iau, which is the name of the day.
Which one should you use?
dydd Iau is the standard noun for the day itself, while ddydd Iau is used specifically to mean 'on Thursday'.
Related words
How does it change in a sentence?
When expressing that something occurs 'on Thursday', the spelling of the first word changes from dydd to ddydd due to soft mutation, resulting in ddydd Iau.
How do you pronounce it?
/ˌdɨːð ˈjaɨ̯/
Did you know?
- The word Iau is a direct reference to the Roman god Jupiter.
Examples in context
- Beth wyt ti'n wneud ddydd Iau?What are you doing on Thursday?
- Dydd Iau yw heddiw.Today is Thursday.
Example conversation
Dylan and Rhiannon are discussing their schedules.
- DylanPan yw'r cyfarfod?When is the meeting?
- RhiannonMae'n digrifyn ar dydd Iau.It is happening on Thursday.
- DylanYdych chi'n gallu dod?Can you come?
- RhiannonYdw, dyma fy amser ar dydd Iau.Yes, this is my time on Thursday.
Sources
- Wiktionary, “Thursday” translations and entries dydd Iau, CC BY-SA 4.0, dump of 2026-09-26.
- Word origins: Wiktionary entries Iau, dydd, dydd Iau, iau, CC BY-SA 4.0.
