Numbers in Irish

How to count in Irish, with details of cardinal, ordinal and personal numbers, and some notes.

Key to abbreviations: m = masculine, f = feminine

CardinalOrdinalPersonal
0náid  
1aonan chéadduine (amhain)
2an darabeirt
3trían tríutríur
4ceathairan ceathrúrceathrar
5cúigan cúigiúcúigear
6an seúseisear
7seachtan seachtúseachtar
8ochtan t-ochtúochtar
9naoian naoúnaonúr
10deichan deichiúdeichniúr
11aon déagan t-aonú ... déagaon duine dhéag
12dó dhéagan dóú ... déagdáréag
13trí déagan tríu ... déagtrí dhuine dhéag
14ceathair déagan ceathrú ... déagceithre dhuine dhéag
15cúig déagan cúigiú ... déagcúig dhuine dhéag
16sé déagan séú ... déagsé dhuine dhéag
17seacht déagan seachtú ... déagseacht dhuine dhéag
18ocht déagan t-ochtú ... déagocht dhuine dhéag
19naoi déagan naoú ... déagnaoi dhuine dhéag
20fichean fichiúfiche dhuine
21an t-aonú ... is fichenane as feedduine is fiche
22fiche a dóan dóú ... is fichebheirt/dhá dhuine is fiche
23fiche a trían tríú ... is fichetrí dhuine is fiche
24fiche a ceathairan ceathrú ... is ficheceithre dhuine is fiche
25fiche a cúigan cuígiú ... is fichecúig dhuine is fiche
26fiche a séan séú ... is fichesé dhuine is fiche
27fiche a seachtan seachtú ... is ficheseacht dhuine is fiche
28fiche a hochtan ochtú ... is ficheocht dhuine is fiche
29fiche a naoian naoú ... is fichenaoi dhuine is fiche
30tríochaan tríochadútríocha duine
31tríocha a haonan t-aonú ... is tríochaduine is tríocha
32tríocha a dóan dóú ... is tríochabeirt/dhá dhuine is tríocha
33tríocha a trían tríú ... is tríochatrí dhuine is tríocha
34tríocha a ceathairan ceathrú ... is tríochaceithre dhuine is tríocha
35tríocha a cúigan cúigiú ... is tríochacúig dhuine is tríocha
36tríocha a séan séú ... is tríochasé dhuine is tríocha
37tríocha a seachtan seachtú ... is tríochaseacht dhuine is tríocha
38tríocha a hochtan ochtú ... is tríochaocht dhuine is tríocha
39tríocha a naoian naoú ... is tríochanaoi dhuine is tríocha
40ceathracha
daichead
ceathrachadú
daicheadú
ceathracha
daichead duine
50caogacaogadúcaoga duine
60seascaseascadúseasca duine
70seachtóseachtódúseachtó duine
80ochtóochtódúochtó duine
90nóchanóchadúnócha duine
100céadan chéadúcéad duine
1000mílean míliúmíle duine

Notes

  • When counting aloud a is added before the numbers, e.g. a haon, a dó, a trí, etc.
  • When counting objects (2) becomes dhá and ceathair (4) becomes ceithre
  • dhá (2) takes the dual case of lamh (hand) = laimh, bos (palm) = bois, cos (foot) = cois, cluas (ear) = cluais and bróg (shoe) = bhróig. Other nouns are in the singular after dhá, eg. dhá ghabhar (two goats).
  • The cardinal numbers 1-6 cause lenition (séimhiú) in the following noun, eg. aon chat (one cat), dhá mhadra (two dogs), trí mhuca (three pigs), ceithre chearca (four hens), cúig chaorach (five sheep), sé chapall (six horses).
  • The cardinal numbers 7-9 cause eclipsis (úrú) in the following noun, eg. seacht ngéanna (seven geese), ocht n-iasc (eight fish), naoi mbád (nine boats)
  • When using ordinal numbers the thing you're counting is inserted in the gap with the dots ..., eg. an seachtú lá déag de mí Dheireadh Fómhair = 17th October.
  • The personal numbers are used for counting people.

If you would like to make any corrections or additions to this page, or if you can provide recordings, please contact me.

Links

Numbers and counting in Irish
http://www.phouka.com/irish/ir_numbers.html
http://www.bbc.co.uk/northernireland/colinandcumberland/littleblackbook/wordbank/numbers.shtml
http://www.bbc.co.uk/northernireland/irish/blas/education/beginnersblas/grammar2.shtml

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