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To fertilize in Irish (toirchigh): Meaning, Conjugation, Examples

Other uses of ‘toirchigh’: impregnate

The Irish for to fertilize is toirchigh; ag toirchiú is fertilizing.
Updated October 2026Report a mistake

How to say “to fertilize” in Irish

Irish:
toirchigh
English:
to fertilize, impregnate
Word type:
verb, second-conjugation
Verbal noun:
toirchiú (ag toirchiú, fertilizing)
Verbal adjective:
toirchithe
Pronunciation:
“TIR-ih-hee”  /ˈt̪ˠɛɾʲəçiː/

What does “toirchigh” mean?

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

to fertilize
To make an egg, plant or animal fertile so that new life begins.Also: fecundate, inseminate, pollinate.
1 other meaning: impregnate
2to impregnate
To make a female pregnant.Also: make pregnant, get pregnant.

“Toirchigh” in the different tenses

Every form follows An Caighdeán Oifigiúil.

Aimsir Chaite (Past)

PersonPositiveNegativeQuestion
mé (I)Thoirchigh méI fertilizedNíor thoirchigh méI did not fertilizeAr thoirchigh mé?Did I fertilize?
tú (you)Thoirchigh túYou fertilizedNíor thoirchigh túYou did not fertilizeAr thoirchigh tú?Did you fertilize?
sé / sí (he / she)Thoirchigh sé / síHe fertilizedNíor thoirchigh sé / síHe did not fertilizeAr thoirchigh sé / sí?Did he fertilize?
sinn (we)ThoirchíomarWe fertilizedNíor thoirchíomarWe did not fertilizeAr thoirchíomar?Did we fertilize?
sibh (you, plural)Thoirchigh sibhYou fertilizedNíor thoirchigh sibhYou did not fertilizeAr thoirchigh sibh?Did you fertilize?
siad (they)Thoirchigh siadThey fertilizedNíor thoirchigh siadThey did not fertilizeAr thoirchigh siad?Did they fertilize?
saorbhriathar (autonomous)ToirchíodhNíor toirchíodhAr toirchíodh?

Aimsir Láithreach (Present)

PersonPositiveNegativeQuestion
mé (I)ToirchímI fertilizeNí thoirchímI do not fertilizeAn dtoirchím?Do I fertilize?
tú (you)Toirchíonn túYou fertilizeNí thoirchíonn túYou do not fertilizeAn dtoirchíonn tú?Do you fertilize?
sé / sí (he / she)Toirchíonn sé / síHe fertilizesNí thoirchíonn sé / síHe does not fertilizeAn dtoirchíonn sé / sí?Does he fertilize?
sinn (we)ToirchímidWe fertilizeNí thoirchímidWe do not fertilizeAn dtoirchímid?Do we fertilize?
sibh (you, plural)Toirchíonn sibhYou fertilizeNí thoirchíonn sibhYou do not fertilizeAn dtoirchíonn sibh?Do you fertilize?
siad (they)Toirchíonn siadThey fertilizeNí thoirchíonn siadThey do not fertilizeAn dtoirchíonn siad?Do they fertilize?
saorbhriathar (autonomous)ToirchítearNí thoirchítearAn dtoirchítear?

Aimsir Fháistineach (Future)

PersonPositiveNegativeQuestion
mé (I)Toircheoidh méI will fertilizeNí thoircheoidh méI will not fertilizeAn dtoircheoidh mé?Will I fertilize?
tú (you)Toircheoidh túYou will fertilizeNí thoircheoidh túYou will not fertilizeAn dtoircheoidh tú?Will you fertilize?
sé / sí (he / she)Toircheoidh sé / síHe will fertilizeNí thoircheoidh sé / síHe will not fertilizeAn dtoircheoidh sé / sí?Will he fertilize?
sinn (we)ToircheoimidWe will fertilizeNí thoircheoimidWe will not fertilizeAn dtoircheoimid?Will we fertilize?
sibh (you, plural)Toircheoidh sibhYou will fertilizeNí thoircheoidh sibhYou will not fertilizeAn dtoircheoidh sibh?Will you fertilize?
siad (they)Toircheoidh siadThey will fertilizeNí thoircheoidh siadThey will not fertilizeAn dtoircheoidh siad?Will they fertilize?
saorbhriathar (autonomous)ToircheofarNí thoircheofarAn dtoircheofar?

Modh Coinníollach (Conditional)

PersonPositiveNegativeQuestion
mé (I)ThoircheoinnI would fertilizeNí thoircheoinnI would not fertilizeAn dtoircheoinn?Would I fertilize?
tú (you)ThoircheofáYou would fertilizeNí thoircheofáYou would not fertilizeAn dtoircheofá?Would you fertilize?
sé / sí (he / she)Thoircheodh sé / síHe would fertilizeNí thoircheodh sé / síHe would not fertilizeAn dtoircheodh sé / sí?Would he fertilize?
sinn (we)ThoircheoimisWe would fertilizeNí thoircheoimisWe would not fertilizeAn dtoircheoimis?Would we fertilize?
sibh (you, plural)Thoircheodh sibhYou would fertilizeNí thoircheodh sibhYou would not fertilizeAn dtoircheodh sibh?Would you fertilize?
siad (they)ThoircheoidísThey would fertilizeNí thoircheoidísThey would not fertilizeAn dtoircheoidís?Would they fertilize?
saorbhriathar (autonomous)ThoircheofaíNí thoircheofaíAn dtoircheofaí?

“Toirchigh” in a sentence: Irish examples

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

Thoirchigh an speirm an ubh.
The sperm fertilized the egg.
Toirchíonn na beacha na bláthanna.
The bees fertilize the flowers.
Toircheoidh an tarbh na ba san earrach.
The bull will impregnate the cows in spring.
Thoircheodh an fheithid an bláth dá dtiocfadh sí.
The insect would fertilize the flower if it came.
Níor toirchíodh an ubh sa tsaotharlann.
The egg was not fertilized in the laboratory.
Ar toirchíodh na huibheacha go fóill?
Have the eggs been fertilized yet?

Other verbs in Irish

More everyday Irish verbs to learn next.

To fertilize in Irish: frequently asked questions

What is the Irish for to fertilize?

The Irish for to fertilize is toirchigh (pronounced “TIR-ih-hee”). It is a second-conjugation verb; the verbal noun is toirchiú.

What is the verbal noun of toirchigh?

The verbal noun of toirchigh is toirchiú, used after ag for the continuous: ag toirchiú (fertilizing). The verbal adjective is toirchithe.

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

Past: Thoirchigh mé; negative Níor thoirchigh mé; question Ar thoirchigh mé?. Future: Toircheoidh mé; negative Ní thoircheoidh mé; question An dtoircheoidh mé?.

What is the modh coinníollach of toirchigh?

The conditional (modh coinníollach) first person is Thoircheoinn (I would fertilize); negative Ní thoircheoinn; question An dtoircheoinn?.

Does toirchigh have more than one meaning?

Yes. Toirchigh can mean to fertilize or to impregnate, depending on context; the first is the most common.

Is 'toirchigh' used for fertilizing soil?

No, 'toirchigh' is biological fertilization; for fertilizing land with manure use 'leasaigh', as in 'leasaigh an talamh'.

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