HeyRua Get the app

Forty in Irish (Daichead): Meaning, Pronunciation, Usage

The Irish for forty is daichead, a masculine noun (plural daichidí).
Updated October 2026Report a mistake

How to say “forty” in Irish

Irish:
daichead
English:
forty
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“DAH-hud”  /ˈd̪ˠahəd̪ˠ/
Various forms
Plural:
daichidí (forties)
Genitive singular:
daichid, an daichid (e.g. ag deireadh an daichid, at the end of the forty)
Genitive plural:
daichidí, na ndaichidí (e.g. i rith na ndaichidí, during the forties)

What does “daichead” mean?

forty
The number forty, or a group of forty things or people.Also: two score, group of forty.

Other Irish words for forty: ceathracha (forty)

“Daichead” with the article

The plural of forty in Irish is daichidí. Here is daichead after the article (an t-alt), in the singular and the plural.

an daichead
the forty
No change after an
na daichidí
the forties
Plural: no change after na

“Daichead” in a sentence: Irish examples

Common Irish sentences using daichead, the Irish word for forty.

Tharla sé daichead bliain ó shin.
It happened forty years ago.
Tá daichead duine sa halla anocht.
There are forty people in the hall tonight.
Bhí sé sna daichidí nuair a phós sé.
He was in his forties when he married.
Chosain an cóta daichead euro.
The coat cost forty euro.
Tá daichead dalta sa rang sin.
There are forty pupils in that class.
Beidh mo mháthair daichead bliain d'aois amárach.
My mother will be forty tomorrow.
Rugadh í sna daichidí.
She was born in the forties.

Other nouns in Irish

More everyday Irish nouns to learn next.

Forty in Irish: frequently asked questions

What is the Irish for forty?

The Irish for forty is daichead (pronounced “DAH-hud”). It’s a masculine noun and the plural is daichidí.

How do you pronounce daichead in Irish?

Daichead is said like “DAH-hud” (IPA /ˈd̪ˠahəd̪ˠ/).

What is the plural of forty in Irish?

The plural of daichead is daichidí; with the article, na daichidí means “the forties”. The genitive plural is daichidí, as in i rith na ndaichidí (during the forties).

Why does daichead change to dhaichead or ndaichead?

Irish changes the start of some words after certain words. After mo (my) daichead becomes mo dhaichead (lenition), and after ár (our) or i (in) it becomes ár ndaichead (eclipsis).

Is there another word for forty in Irish?

Yes, the older counting system uses 'dhá scór' (two score), and 'ceathracha' is used in some systems for the abstract number.

Does the noun after daichead go in the plural?

No, the noun stays singular after daichead: 'daichead bliain', 'daichead duine'.

Learn Irish by
actually speaking it

Learn everyday Irish words like daichead through guided conversation with Rua.

7-day free trial. Cancel anytime.

The HeyRua app home screen