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Old Irish[edit]

Alternative forms[edit]


From oín(one), from Proto-Celtic *oinos, from Proto-Indo-European *óynos(single, one). The etymology of the second element is disputed; most likely it is gus(strength, vigour), from Proto-Celtic *gustus, or it may be from Proto-Celtic *gus-(choose), from Proto-Indo-European *ǵews-.


Proper noun[edit]

Oíngus m ‎(genitive Oíngusa)

  1. (Irish mythology) The Gaelic god of love, youth, and poetic inspiration, son of the Dagdae and Boann of the Túatha Dé Danann.
  2. A male given name, corresponding to Angus.



Old Irish mutation
Radical Lenition Nasalization
Oíngus unchanged nOíngus
Note: Some of these forms may be hypothetical. Not every
possible mutated form of every word actually occurs.


  • Oengus” in Dictionary of the Irish Language, Royal Irish Academy, 1913–76.