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See also: udar


Alternative forms[edit]


From Middle Irish ugtar, from Old Irish áugtor, from Latin auctor.


  • IPA(key): /ˈuːd̪ˠəɾˠ/


údar m (genitive singular údair, nominative plural údair)

  1. author, originator; source, origin; story behind a song
  2. author, writer
  3. authority, expert
  4. authority, reliable evidence
  5. cause, reason; grounds
  6. makings (necessary ingredients)


  • Alternative plural: údaracha (Cois Fharraige)


  • (cause, reason): fáth
  • (cause, reason, source): cúis

Derived terms[edit]

  • banúdar (authoress, female author)
  • bunúdar (original author; prime mover; primary authority; root cause)


Irish mutation
Radical Eclipsis with h-prothesis with t-prothesis
údar n-údar húdar t-údar
Note: Some of these forms may be hypothetical. Not every
possible mutated form of every word actually occurs.

Further reading[edit]

  • "údar" in Foclóir Gaeilge-Béarla, An Gúm, 1977, by Niall Ó Dónaill.
  • author” in New English-Irish Dictionary by Foras na Gaeilge.
  • augtar” in Dictionary of the Irish Language, Royal Irish Academy, 1913–76.
  • “uġdar” in Foclóir Gaeḋilge agus Béarla, Irish Texts Society, 1927, by Patrick S. Dinneen.