The Days of the Week in Irish

The Days of the Week in Irish

There’s a great little song in Irish (based on a folktale) called “Dé Luain, Dé Máirt,” in which a crippled man called Donal Bocht Cam (Poor, Twisted Donal) rescues a group of fairies from the monotony of singing “Monday, Tuesday, Monday, Tuesday” in Irish over and over by supplying the Irish word for Wednesday.

The fairies reward Donal by removing the hump from his back and sending him on his way healthy and sound (not a typical result of encounters with Irish fairies, which tend, on the whole, to be rather unpleasant creatures!).

You may never encounter a group of fairies stuck on repeat, but, if you’re learning Irish (or thinking about learning it), it’s always useful to know the days of the week (and how to use them properly).

First, the basics

If you simply need to recite the days of the week, here is what you would say:

Dé Luain (Jay LOO-in): Monday

Dé Máirt (Jay march): Tuesday

Dé Céadaoin (Jay KAY-deen): Wednesday

Déardaoin (JAY-ar-deen): Thursday

Dé hAoine (Jay HEEN-yeh): Friday

Dé Sathairn (Jay SA-ha-rin): Saturday

Dé Domhnaigh (Jay DOH-nee): Sunday

Not quite the dictionary thing

If you were to look the days of the week up in a dictionary, however, you might be a bit confused. A typical dictionary listing for, say, “Monday” would look something like this:

(An) Luan (pronounced “un LOO-un”)

What gives? What’s that “(An)” doing there? What happened to “Dé”? And why is it spelled “Luan” instead of “Luain”?

A very Irish mode of expression

Irish expresses days of the week in a very unique way. “Luan” does, indeed, mean “Monday,” but you’d never just SAY “Luan.”

Instead, you literally say “The Day of Monday,” “The Day of Tuesday,” etc. You do this by using an old Irish word for “day”: . You then follow “Dé” with the genitive case of the name of the day (the genitive of “Luan” is “Luain”).

If you don’t know what the genitive case is, here’s a brief article about it:

The Genitive in Irish Grammar

Bitesize subscribers can access more in-depth explanations in the following lessons:

Possession – Part 5: The Genitive Case

Nouns: The Genitive Case – Part 1

Nouns: The Genitive Case – Part 2

For now, it suffices to say that the genitive case is a special way of writing and pronouncing a noun (aka “an inflection”) that, among other things, includes the concept of “of.”

Luan: Monday

Dé Luain: The Day of Monday

This is the form you use when simply reciting the days of the week, or when referring to a specific day of the week, for example:

Feicfidh mé thú Dé Luain: I’ll see you on Monday.


Chonaic mé é Dé hAoine: I saw him on Friday.

So what about that “(An)”?

“An” is the definite article…equivalent to “the” in English.

Remember how I said that you would never use “Luan” (or any of the other days of the week) by itself in Irish?  When the days aren’t preceded by the “Dé,” they will have “an” in front of them, and will be in the nominative case (that’s the case you find in the dictionary).  You literally say “on the Monday” or “on the Tuesday.”

You use this form when you’re speaking of a day in a more general sense, for example:

Téim go dtí na siopaí ar an Luan: I go to the shops on Monday (the assumption being that this is your regular practice…you’re not talking about next Monday, but any given Monday).

 Of course, there’s always an exception!

This is Irish, so you know there will always be at least one exception to the rule, right? In the case of the days of the week, that exception is Déardaoin: Thursday.

Because the “Dé” is an integral part of the day’s name, it never goes away:

Chonaic mé Seán ag an siopa Déardaoin: I saw Seán at the shop on Thursday (Here we’re speaking of a particular Thursday).

Téann sé ann ar an Déardaoin: He goes there on Thursdays (Regular practice implied).

 So where did these names come from, anyway?

If you’ve studied a language such as French or Spanish, some of these names may have a familiar feel.

We don’t know if the ancient Irish had special names for each day of the week, but the names in use today came from Latin.

Some of the names come from ancient Roman pagan practice:

Dé Luain = Moon Day (From the Latin “luna”: Moon).

Dé Máirt = Mars’ Day (From the Roman god Mars).

Dé Sathairn = Saturn’s Day (From the Roman god Saturn).

Other names come from early Christian practice, and were almost certainly brought to Ireland by the monks:

Dé Céadaoin = Day of the first fast

Déardaoin = Day between the fasts

Dé hAoine = Day of the [primary] fast

These three came from the monastic practice of fasting on Wednesday and Friday.

Dé Domhnaigh = Day of the Lord (from the Latin “dominus”: lord)

So now you’re armed with enough knowledge to satisfy any fairy!

Did you find this article helpful?

Did you already know all this about the days of the week in Irish? Let us know your thoughts below!

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  1. Eoin says:

    If you’re a Bitesize Irish Gaelic member, also check out Lesson: Days of the week at

    If you’re not yet a member, why ever not? Go sign up!

    Great information here from Audrey, I hope others find it useful.

  2. Gordon Molengraf says:

    In regards to day of the week is “ar” only used with “an”?

  3. Annie H says:

    These posts are a great reinforcement to the online lessons as well as providing another approach to the information. I am really having fun with this. I wish I could find someone to practice with face-to-face. I LOVE the audio lessons as reinforcement. Thanks! Annie

  4. rotbowie says:

    The word Céadaoin should not (IMO) be pronounced
    “KAY-deen” but KAYD-een
    I certainly learned it in school as (Jay KAY-deen) as listed on your site, but as the two words céad Aoin make up the word, it should be pronounced as such to retain meaning.
    Many names are similarly ‘mispronounced’ in the same way in most parts of the country ro-sheen instead of róis-een, ro-nawn rather than rown-awn

  5. Audrey Nickel says:

    I’m not sure I’m getting the distinction, rotbowie. As I’m reading it, regardless of where you put the “d” in the phonetics, it’s pronounced the same.

  6. rotbowie says:

    Hi Audrey, it sounds subtle, but it’s an important distinction. (even if I am being pedantic)
    een and awn are as you know suffixes to the main word in names like
    Róisín and Rónán etc. So pronouncing the word with the final consonant of the word starting the suffix is *wrong*
    For example, most people pronounce the name Colman as “Coal man”
    but it comes from Colm-án so it should be ‘Cullm awn’

    So similarly, Ceadaoin which is two words Cead and aoin should be
    ‘Kayd – een’ and not Kay-Deen as the first pronunciation helps retain the meaning of the original two words. First-fast

    It happens often in English as so many words are derived from other languages
    September (from Latin septem, “seven”) shouldn’t be Sep – tember but
    Septem-ber … this could go on forever 🙂
    it just bugs me is all!

  7. Audrey Nickel says:

    My concern here is simply to help people pronounce the words properly. When using English phonetics, I use the structure that, in my experience, is most likely to help Irish learners get into the ballpark pronunciation-wise. It serves no purpose to keep the meaning intact in a phonetic rendering if it doesn’t also help the learner to pronounce the word correctly (especially as the phonetic renderings have no meaning in and of themselves).

  8. Margaret says:

    The little story you began about the hunchback and the fairies, in the version my Irish father told me it does not end so well. There were 3 men with humps and the fairies removed the humps from 2 of the men, as the fairies were naming the days of the week in Gaelic and the first 2 hunchbacks offered names for a day in the week and the names were a musical and lyrical match to the first day named by the fairies, but then 3rd hunchback now seeing the the other 2 having their humps removed went down the road where the fairies were and sure enough the fairies sang the 3 days of the week Dé Luain Monday, Dé Máirt Tuesday and Dé Céadaoin Wednesday and waited for the 3rd hunchback to add the next day. Well he did but it was a cluncker, discordant, and harsh, so he was given the other 2 hunchback’s humps!! The End

  9. Margaret says:

    I didn’t realize this was so old, sorry for posting!

  10. Mark Hassall says:

    I looked up ‘Irish days of the week’ on the off chance that I might find something on the pre-Roman/ pre Christian names of the days. I had already found out that there was nothing about ancient Celtic names in Wales. Sadly it appears that the situation in Ireland is the same. We do have the Celtic names for the months and some festivals inscribed on the fragmentary bronze tablet found a Coligny in France. I wonder if anyone has ever tried to track down the ancients Irish names of days of the week… if so I would love to follow things up…..

  11. Mark Hassall says:

    Thanks so much Ana – hope you come up with something!

    All the best,


  12. Patrick Leighton says:

    How is ch in the middle of a word pronounced?

  13. Joe Kelly says:

    I had always been told that Luan, or Dé Luain, came from either the festival “Lúnasa”; or its namesake, the god “Lú” – do you have a source supporting the idea that Luan came from Luna instead of Lú?

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