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Eclipsis in Irish (Urú): Meaning, Pronunciation, Usage

‘urú’ also means: eclipse · eclipsing

The Irish for eclipsis is urú, a masculine noun (plural uruithe). Ag urú is eclipsing, from the verb uraigh.
Updated October 2026Report a mistake

How to say “eclipsis” in Irish

Irish:
urú
English:
eclipsis, eclipse, eclipsing
Word type:
noun (verbal noun)
Verbal noun of:
uraigh, to eclipse (ag urú, eclipsing)
Gender:
masculine
Pronunciation:
“UR-oo”  /ˈʊɾˠuː/
Various forms
Plural:
uruithe (eclipses)
Genitive singular:
uraithe, an uraithe (e.g. rialacha an uraithe, the rules of eclipsis)
Genitive plural:
uruithe, na n-uruithe (e.g. rialacha na n-uruithe, the rules of eclipses)

What does “urú” mean?

“Urú” has three alternative meanings. The most common comes first.

eclipsis
In grammar, the initial mutation in Irish where a sound is added before a word's first letter, as in 'ar an mbord' or 'i gcathair'.Also: nasalization, nasalisation, initial mutation.
2 other meanings: eclipse or eclipsing
2eclipse
The darkening of the sun or moon when another heavenly body passes in front of it.Also: solar eclipse, lunar eclipse.
3eclipsing
The act of eclipsing or overshadowing something; it is the verbal noun of the verb 'uraigh'.Also: overshadowing, obscuring.

“Urú” as a verbal noun

After ag, urú means eclipsing: it is the verbal noun of the verb uraigh (to eclipse). A noun that follows it goes into the genitive.

agat
+
urúverbal noun
=
ag urúeclipsing

“Urú” with the article

The plural of eclipsis in Irish is uruithe. Here is urú after the article (an t-alt), in the singular and the plural.

an t-urú
the eclipsis
Masculine nouns take t before a vowel after an
na huruithe
the eclipses
Plural: na adds h before a vowel

“Urú” in a sentence: Irish examples

Common Irish sentences using urú, the Irish word for eclipsis.

An bhfuil urú ar an bhfocal sin?
Is that word eclipsed?
Cuireann an réamhfhocal 'i' urú ar an bhfocal.
The preposition 'i' eclipses the word.
Chonaiceamar urú na gréine inné.
We saw the solar eclipse yesterday.
Ní thuigim rialacha an uraithe fós.
I still don't understand the rules of eclipsis.
Rinne mé botún leis an urú i m'aiste.
I made a mistake with the eclipsis in my essay.
Bíonn uruithe na gealaí níos minice ná mar a cheapfá.
Lunar eclipses happen more often than you'd think.
Tá urú sa dara focal den abairt.
There is eclipsis in the second word of the sentence.

Other nouns in Irish

More everyday Irish nouns to learn next.

Eclipsis in Irish: frequently asked questions

What is the Irish for eclipsis?

The Irish for eclipsis is urú (pronounced “UR-oo”). It’s a masculine noun and the plural is uruithe. Depending on context it can also mean eclipse or eclipsing.

How do you pronounce urú in Irish?

Urú is said like “UR-oo” (IPA /ˈʊɾˠuː/).

What is the plural of eclipsis in Irish?

The plural of urú is uruithe; with the article, na huruithe means “the eclipses”. The genitive plural is uruithe, as in rialacha na n-uruithe (the rules of eclipses).

Does urú have more than one meaning?

Yes. Urú can mean eclipsis, eclipse or eclipsing, depending on context; the first is the most common.

Why does urú sometimes have a t or h in front of it?

Irish nouns beginning with a vowel take a prefix after certain words: an t-urú (the eclipsis), a hurú (her eclipsis), a n-urú (their eclipsis), na huruithe (the eclipses).

What is the difference between 'urú' and 'séimhiú'?

'Urú' (eclipsis) adds a letter before the word, as in 'i gcarr', while 'séimhiú' (lenition) adds an h after the first consonant, as in 'mo charr'.

How do I say 'solar eclipse' in Irish?

A solar eclipse is 'urú na gréine' and a lunar eclipse is 'urú na gealaí'.

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