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To square in Irish (cearnaigh): Meaning, Conjugation, Examples

The Irish for to square is cearnaigh; ag cearnú is squaring.
Updated October 2026Report a mistake

How to say “to square” in Irish

Irish:
cearnaigh
English:
to square
Word type:
verb, second-conjugation
Verbal noun:
cearnú (ag cearnú, squaring)
Verbal adjective:
cearnaithe
Pronunciation:
“KYAR-nee”  /ˈcaːɾˠn̪ˠiː/

What does “cearnaigh” mean?

to square
To multiply a number by itself, or to make something square in shape.Also: square a number, make square.

“Cearnaigh” in the different tenses

Every form follows An Caighdeán Oifigiúil.

Aimsir Chaite (Past)

PersonPositiveNegativeQuestion
mé (I)Chearnaigh méI squaredNíor chearnaigh méI did not squareAr chearnaigh mé?Did I square?
tú (you)Chearnaigh túYou squaredNíor chearnaigh túYou did not squareAr chearnaigh tú?Did you square?
sé / sí (he / she)Chearnaigh sé / síHe squaredNíor chearnaigh sé / síHe did not squareAr chearnaigh sé / sí?Did he square?
sinn (we)ChearnaíomarWe squaredNíor chearnaíomarWe did not squareAr chearnaíomar?Did we square?
sibh (you, plural)Chearnaigh sibhYou squaredNíor chearnaigh sibhYou did not squareAr chearnaigh sibh?Did you square?
siad (they)Chearnaigh siadThey squaredNíor chearnaigh siadThey did not squareAr chearnaigh siad?Did they square?
saorbhriathar (autonomous)CearnaíodhNíor cearnaíodhAr cearnaíodh?

Aimsir Láithreach (Present)

PersonPositiveNegativeQuestion
mé (I)CearnaímI squareNí chearnaímI do not squareAn gcearnaím?Do I square?
tú (you)Cearnaíonn túYou squareNí chearnaíonn túYou do not squareAn gcearnaíonn tú?Do you square?
sé / sí (he / she)Cearnaíonn sé / síHe squaresNí chearnaíonn sé / síHe does not squareAn gcearnaíonn sé / sí?Does he square?
sinn (we)CearnaímidWe squareNí chearnaímidWe do not squareAn gcearnaímid?Do we square?
sibh (you, plural)Cearnaíonn sibhYou squareNí chearnaíonn sibhYou do not squareAn gcearnaíonn sibh?Do you square?
siad (they)Cearnaíonn siadThey squareNí chearnaíonn siadThey do not squareAn gcearnaíonn siad?Do they square?
saorbhriathar (autonomous)CearnaítearNí chearnaítearAn gcearnaítear?

Aimsir Fháistineach (Future)

PersonPositiveNegativeQuestion
mé (I)Cearnóidh méI will squareNí chearnóidh méI will not squareAn gcearnóidh mé?Will I square?
tú (you)Cearnóidh túYou will squareNí chearnóidh túYou will not squareAn gcearnóidh tú?Will you square?
sé / sí (he / she)Cearnóidh sé / síHe will squareNí chearnóidh sé / síHe will not squareAn gcearnóidh sé / sí?Will he square?
sinn (we)CearnóimidWe will squareNí chearnóimidWe will not squareAn gcearnóimid?Will we square?
sibh (you, plural)Cearnóidh sibhYou will squareNí chearnóidh sibhYou will not squareAn gcearnóidh sibh?Will you square?
siad (they)Cearnóidh siadThey will squareNí chearnóidh siadThey will not squareAn gcearnóidh siad?Will they square?
saorbhriathar (autonomous)CearnófarNí chearnófarAn gcearnófar?

Modh Coinníollach (Conditional)

PersonPositiveNegativeQuestion
mé (I)ChearnóinnI would squareNí chearnóinnI would not squareAn gcearnóinn?Would I square?
tú (you)ChearnófáYou would squareNí chearnófáYou would not squareAn gcearnófá?Would you square?
sé / sí (he / she)Chearnódh sé / síHe would squareNí chearnódh sé / síHe would not squareAn gcearnódh sé / sí?Would he square?
sinn (we)ChearnóimisWe would squareNí chearnóimisWe would not squareAn gcearnóimis?Would we square?
sibh (you, plural)Chearnódh sibhYou would squareNí chearnódh sibhYou would not squareAn gcearnódh sibh?Would you square?
siad (they)ChearnóidísThey would squareNí chearnóidísThey would not squareAn gcearnóidís?Would they square?
saorbhriathar (autonomous)ChearnófaíNí chearnófaíAn gcearnófaí?

“Cearnaigh” in a sentence: Irish examples

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

Chearnaigh sí an uimhir a cúig.
She squared the number five.
Cearnaíonn an múinteoir na huimhreacha ar an gclár.
The teacher squares the numbers on the board.
Cearnóidh mé an uimhir sin anois.
I will square that number now.
Chearnódh sé an t-adhmad dá mbeadh uirlis aige.
He would square the timber if he had a tool.
Níor chearnaigh tú an fad i gceart.
You didn't square the length properly.
Ar chearnaigh tú an uimhir a trí?
Did you square the number three?

Other verbs in Irish

More everyday Irish verbs to learn next.

To square in Irish: frequently asked questions

What is the Irish for to square?

The Irish for to square is cearnaigh (pronounced “KYAR-nee”). It is a second-conjugation verb; the verbal noun is cearnú.

What is the verbal noun of cearnaigh?

The verbal noun of cearnaigh is cearnú, used after ag for the continuous: ag cearnú (squaring). The verbal adjective is cearnaithe.

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

Past: Chearnaigh mé; negative Níor chearnaigh mé; question Ar chearnaigh mé?. Future: Cearnóidh mé; negative Ní chearnóidh mé; question An gcearnóidh mé?.

What is the modh coinníollach of cearnaigh?

The conditional (modh coinníollach) first person is Chearnóinn (I would square); negative Ní chearnóinn; question An gcearnóinn?.

How do you say 'squared' in maths in Irish?

Use the verbal adjective 'cearnaithe', or say 'a cúig cearnaithe' for five squared; the noun 'cearnóg' means a square.

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