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Humour in Irish (Lionn): Meaning, Pronunciation, Usage

‘lionn’ also means: melancholy

The Irish for humour is lionn, a masculine noun (plural lionnta).
Updated October 2026Report a mistake

How to say “humour” in Irish

Irish:
lionn
English:
humour, melancholy
Word type:
noun
Gender:
masculine, third declension
Pronunciation:
“lyoon”  /lʲuːn̪ˠ/
Various forms
Plural:
lionnta (humours)
Genitive singular:
leanna, an leanna (e.g. cothromaíocht an leanna, the balance of the humour)
Genitive plural:
lionnta, na lionnta (e.g. teoiric na lionnta, the theory of the humours)

What does “lionn” mean?

“Lionn” has two alternative meanings. The most common comes first.

humour
One of the fluids of the body, especially in old medicine where the four humours were thought to control health and temper.Also: bodily fluid, body fluid, fluid.
1 other meaning: melancholy
2melancholy
In the phrase 'lionn dubh', a state of deep sadness or low spirits.Also: sadness, depression, gloom.

Other Irish words for humour: greann (humour), giúmar (mood)

“Lionn” with the article

The plural of humour in Irish is lionnta. Here is lionn after the article (an t-alt), in the singular and the plural.

an lionn
the humour
No change after an
na lionnta
the humours
Plural: no change after na

“Lionn” in a sentence: Irish examples

Common Irish sentences using lionn, the Irish word for humour.

Bhí lionn dubh air ar feadh an gheimhridh.
He was depressed all winter.
Tá ceithre lionn sa chorp, dar leis na seandochtúirí.
There are four humours in the body, according to the old doctors.
Is lionn í an fhuil, dar leo.
Blood is a humour, in their view.
Tháinig lionn dubh uirthi tar éis bhás a fir.
She fell into melancholy after her husband died.
Bíonn lionn fionn ag gluaiseacht tríd an gcorp.
Lymph moves through the body.
Ní raibh cothromaíocht sna lionnta, a dúirt an liaig.
The humours were out of balance, the physician said.
Is lionn uiscí a líonann tosach na súile.
Aqueous humour fills the front of the eye.

Other nouns in Irish

More everyday Irish nouns to learn next.

Humour in Irish: frequently asked questions

What is the Irish for humour?

The Irish for humour is lionn (pronounced “lyoon”). It’s a masculine noun and the plural is lionnta. Depending on context it can also mean melancholy.

How do you pronounce lionn in Irish?

Lionn is said like “lyoon” (IPA /lʲuːn̪ˠ/).

What is the plural of humour in Irish?

The plural of lionn is lionnta; with the article, na lionnta means “the humours”. The genitive plural is lionnta, as in teoiric na lionnta (the theory of the humours).

Does lionn have more than one meaning?

Yes. Lionn can mean humour or melancholy, depending on context; the first is the most common.

What is the difference between 'lionn' and 'leann'?

'Lionn' is used for bodily humours, as in 'lionn dubh' (melancholy), while 'leann' usually means ale or beer; historically they are forms of the same word.

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