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To rust in Irish (meirgigh): Meaning, Conjugation, Examples

Other uses of ‘meirgigh’: become irritable

The Irish for to rust is meirgigh; ag meirgiú is rusting.
Updated October 2026Report a mistake

How to say “to rust” in Irish

Irish:
meirgigh
English:
to rust, become irritable
Word type:
verb, second-conjugation
Verbal noun:
meirgiú (ag meirgiú, rusting)
Verbal adjective:
meirgithe
Pronunciation:
“MER-ig-ee”  /ˈmʲɛɾʲəɟiː/

What does “meirgigh” mean?

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

to rust
To become covered with rust, or to make metal rusty.Also: go rusty, corrode, become rusty.
1 other meaning: become irritable
2to become irritable
Figuratively, to become peevish, crusty or irritable.Also: get crusty, grow peevish.

“Meirgigh” in the different tenses

Every form follows An Caighdeán Oifigiúil.

Aimsir Chaite (Past)

PersonPositiveNegativeQuestion
mé (I)Mheirgigh méI rustedNíor mheirgigh méI did not rustAr mheirgigh mé?Did I rust?
tú (you)Mheirgigh túYou rustedNíor mheirgigh túYou did not rustAr mheirgigh tú?Did you rust?
sé / sí (he / she)Mheirgigh sé / síHe rustedNíor mheirgigh sé / síHe did not rustAr mheirgigh sé / sí?Did he rust?
sinn (we)MheirgíomarWe rustedNíor mheirgíomarWe did not rustAr mheirgíomar?Did we rust?
sibh (you, plural)Mheirgigh sibhYou rustedNíor mheirgigh sibhYou did not rustAr mheirgigh sibh?Did you rust?
siad (they)Mheirgigh siadThey rustedNíor mheirgigh siadThey did not rustAr mheirgigh siad?Did they rust?
saorbhriathar (autonomous)MeirgíodhNíor meirgíodhAr meirgíodh?

Aimsir Láithreach (Present)

PersonPositiveNegativeQuestion
mé (I)MeirgímI rustNí mheirgímI do not rustAn meirgím?Do I rust?
tú (you)Meirgíonn túYou rustNí mheirgíonn túYou do not rustAn meirgíonn tú?Do you rust?
sé / sí (he / she)Meirgíonn sé / síHe rustsNí mheirgíonn sé / síHe does not rustAn meirgíonn sé / sí?Does he rust?
sinn (we)MeirgímidWe rustNí mheirgímidWe do not rustAn meirgímid?Do we rust?
sibh (you, plural)Meirgíonn sibhYou rustNí mheirgíonn sibhYou do not rustAn meirgíonn sibh?Do you rust?
siad (they)Meirgíonn siadThey rustNí mheirgíonn siadThey do not rustAn meirgíonn siad?Do they rust?
saorbhriathar (autonomous)MeirgítearNí mheirgítearAn meirgítear?

Aimsir Fháistineach (Future)

PersonPositiveNegativeQuestion
mé (I)Meirgeoidh méI will rustNí mheirgeoidh méI will not rustAn meirgeoidh mé?Will I rust?
tú (you)Meirgeoidh túYou will rustNí mheirgeoidh túYou will not rustAn meirgeoidh tú?Will you rust?
sé / sí (he / she)Meirgeoidh sé / síHe will rustNí mheirgeoidh sé / síHe will not rustAn meirgeoidh sé / sí?Will he rust?
sinn (we)MeirgeoimidWe will rustNí mheirgeoimidWe will not rustAn meirgeoimid?Will we rust?
sibh (you, plural)Meirgeoidh sibhYou will rustNí mheirgeoidh sibhYou will not rustAn meirgeoidh sibh?Will you rust?
siad (they)Meirgeoidh siadThey will rustNí mheirgeoidh siadThey will not rustAn meirgeoidh siad?Will they rust?
saorbhriathar (autonomous)MeirgeofarNí mheirgeofarAn meirgeofar?

Modh Coinníollach (Conditional)

PersonPositiveNegativeQuestion
mé (I)MheirgeoinnI would rustNí mheirgeoinnI would not rustAn meirgeoinn?Would I rust?
tú (you)MheirgeofáYou would rustNí mheirgeofáYou would not rustAn meirgeofá?Would you rust?
sé / sí (he / she)Mheirgeodh sé / síHe would rustNí mheirgeodh sé / síHe would not rustAn meirgeodh sé / sí?Would he rust?
sinn (we)MheirgeoimisWe would rustNí mheirgeoimisWe would not rustAn meirgeoimis?Would we rust?
sibh (you, plural)Mheirgeodh sibhYou would rustNí mheirgeodh sibhYou would not rustAn meirgeodh sibh?Would you rust?
siad (they)MheirgeoidísThey would rustNí mheirgeoidísThey would not rustAn meirgeoidís?Would they rust?
saorbhriathar (autonomous)MheirgeofaíNí mheirgeofaíAn meirgeofaí?

“Meirgigh” in a sentence: Irish examples

Past, present, future and conditional, with a negative and a question.

Mheirgigh an rothar a fágadh amuigh sa bháisteach.
The bike that was left out in the rain rusted.
Meirgíonn iarann go tapa cois farraige.
Iron rusts quickly by the sea.
Meirgeoidh na huirlisí mura dtriomaíonn tú iad.
The tools will rust if you don't dry them.
Mheirgeodh an geata gan phéint.
The gate would rust without paint.
Níor mheirgigh an chruach dhosmálta riamh.
The stainless steel never rusted.
Ar mheirgigh an carr thar an ngeimhreadh?
Did the car rust over the winter?

Other verbs in Irish

More everyday Irish verbs to learn next.

To rust in Irish: frequently asked questions

What is the Irish for to rust?

The Irish for to rust is meirgigh (pronounced “MER-ig-ee”). It is a second-conjugation verb; the verbal noun is meirgiú.

What is the verbal noun of meirgigh?

The verbal noun of meirgigh is meirgiú, used after ag for the continuous: ag meirgiú (rusting). The verbal adjective is meirgithe.

How do you say meirgigh in the past and the future?

Past: Mheirgigh mé; negative Níor mheirgigh mé; question Ar mheirgigh mé?. Future: Meirgeoidh mé; negative Ní mheirgeoidh mé; question An meirgeoidh mé?.

What is the modh coinníollach of meirgigh?

The conditional (modh coinníollach) first person is Mheirgeoinn (I would rust); negative Ní mheirgeoinn; question An meirgeoinn?.

Does meirgigh have more than one meaning?

Yes. Meirgigh can mean to rust or to become irritable, depending on context; the first is the most common.

What is the Irish noun for rust?

The noun is "meirg", and something rusty is "meirgeach" or "meirgithe", as in "tairne meirgithe" (a rusty nail).

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