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Mildew in Irish (Coincleach): Meaning, Pronunciation, Usage

The Irish for mildew is coincleach, a feminine noun.
Updated October 2026Report a mistake

How to say “mildew” in Irish

Irish:
coincleach
English:
mildew
Word type:
noun
Gender:
feminine, second declension
Pronunciation:
“KING-klakh”  /ˈkɪŋkʲlʲəx/
Various forms
Genitive singular:
coinclí, na coinclí (e.g. boladh na coinclí, the smell of mildew)

What does “coincleach” mean?

mildew
A whitish or greyish growth of mould that forms on damp things such as cloth, paper, plants or food.Also: mould, mustiness, blight.

“Coincleach” with the article

Here is coincleach after the article (an t-alt).

an choincleach
the mildew
Lenition: c becomes ch after an (feminine noun)

“Coincleach” in a sentence: Irish examples

Common Irish sentences using coincleach, the Irish word for mildew.

Tá coincleach ar na ballaí sa seomra folctha.
There's mildew on the walls in the bathroom.
Tháinig coincleach ar an arán.
The bread went mouldy.
Bhí boladh na coinclí ar na seanleabhair.
The old books smelled of mildew.
Ghlan sí an choincleach den chuirtín.
She cleaned the mildew off the curtain.
Cuireann an taise coincleach ar éadaí.
Damp causes mildew on clothes.
Tá an choincleach ag scaipeadh ar na rósanna.
The mildew is spreading on the roses.
Fág an fhuinneog oscailte ar eagla na coinclí.
Leave the window open in case of mildew.

Other nouns in Irish

More everyday Irish nouns to learn next.

Mildew in Irish: frequently asked questions

What is the Irish for mildew?

The Irish for mildew is coincleach (pronounced “KING-klakh”). It’s a feminine noun.

How do you pronounce coincleach in Irish?

Coincleach is said like “KING-klakh” (IPA /ˈkɪŋkʲlʲəx/).

Does coincleach have a plural?

No plural form is given for coincleach in the standard. Many abstract and mass nouns in Irish have no plural.

Why does coincleach change to choincleach or gcoincleach?

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

Is 'coincleach' the same as 'caonach'?

Not quite: 'coincleach' is mildew or mould, while 'caonach' is mainly moss, although 'caonach liath' is also used for mould.

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