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Alternative forms[edit]


From Old Irish blíadain, from Proto-Celtic *blēdanī (year).



bliain f (genitive singular bliana, nominative plural blianta)

  1. year

Usage notes[edit]

  • After most numerals, the count plural bliana is used. After aon and dhá, the singular lenited form is used. The singular is also used after tens, except deich. The count plural is not lenited after trí through . It is eclipsed from seacht up to deich:[1]
    • aon bhliain amháinone year
    • dhá bhliaintwo years
    • trí blianathree years
    • seacht mblianaseven years
    • fiche bliaintwenty years
    • ochtó bliaineighty years


Derived terms[edit]


Irish mutation
Radical Lenition Eclipsis
bliain bhliain mbliain
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.


Further reading[edit]

  • bliadain” in Dictionary of the Irish Language, Royal Irish Academy, 1913–76.
  • “bliaḋain” in Foclóir Gaeḋilge agus Béarla, Irish Texts Society, 1st ed., 1904, by Patrick S. Dinneen, page 71.
  • "bliain" in Foclóir Gaeilge-Béarla, An Gúm, 1977, by Niall Ó Dónaill.
  • Entries containing “bliain” in English-Irish Dictionary, An Gúm, 1959, by Tomás de Bhaldraithe.
  • Entries containing “bliain” in New English-Irish Dictionary by Foras na Gaeilge.
  • “bliain” at the Historical Irish Corpus, 1600–1926 of the Royal Irish Academy.