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Old dog in Irish (Seanmhadra): Meaning, Pronunciation, Usage

The Irish for old dog is seanmhadra, a masculine noun (plural seanmhadraí).
Updated October 2026Report a mistake

How to say “old dog” in Irish

Irish:
seanmhadra
English:
old dog
Word type:
noun
Gender:
masculine
Pronunciation:
“SHAN-vod-ruh”  /ˈʃanˌwad̪ˠɾˠə/
Various forms
Plural:
seanmhadraí (old dogs)
Genitive singular:
seanmhadra, an tseanmhadra (e.g. cnámh an tseanmhadra, the old dog's bone)
Genitive plural:
seanmhadraí, na seanmhadraí (e.g. leapacha na seanmhadraí, the old dogs' beds)

What does “seanmhadra” mean?

old dog
A dog that is old or has lived a long time.Also: aged dog, elderly dog.

“Seanmhadra” with the article

The plural of old dog in Irish is seanmhadraí. Here is seanmhadra after the article (an t-alt), in the singular and the plural.

an seanmhadra
the old dog
No change after an
na seanmhadraí
the old dogs
Plural: no change after na

“Seanmhadra” in a sentence: Irish examples

Common Irish sentences using seanmhadra, the Irish word for old dog.

Is seanmhadra é anois, ach tá sé fós cairdiúil.
He's an old dog now, but he's still friendly.
Bhí an seanmhadra ina chodladh cois tine.
The old dog was asleep by the fire.
Thug mé uisce don seanmhadra.
I gave water to the old dog.
Tá eireaball an tseanmhadra ag croitheadh.
The old dog's tail is wagging.
Tá mo sheanmhadra ag éirí bodhar.
My old dog is going deaf.
Ní shiúlann an seanmhadra i bhfad níos mó.
The old dog doesn't walk far any more.
Ní féidir cleas nua a mhúineadh do sheanmhadra.
You can't teach an old dog new tricks.

Other nouns in Irish

More everyday Irish nouns to learn next.

Old dog in Irish: frequently asked questions

What is the Irish for old dog?

The Irish for old dog is seanmhadra (pronounced “SHAN-vod-ruh”). It’s a masculine noun and the plural is seanmhadraí.

How do you pronounce seanmhadra in Irish?

Seanmhadra is said like “SHAN-vod-ruh” (IPA /ˈʃanˌwad̪ˠɾˠə/).

What is the plural of old dog in Irish?

The plural of seanmhadra is seanmhadraí; with the article, na seanmhadraí means “the old dogs”. The genitive plural is seanmhadraí, as in leapacha na seanmhadraí (the old dogs' beds).

Why does seanmhadra change to sheanmhadra?

After words like mo (my) and do (your) the first letter is lenited: mo sheanmhadra. After ár (our) it stays ár seanmhadra, because s does not take eclipsis.

How is 'seanmhadra' formed?

It is 'sean' (old) prefixed to 'madra' (dog), which lenites it: madra becomes seanmhadra, written as one word.

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