From Middle Irish ilar (compare Scottish Gaelic iolair), from Old Irish irar, from Proto-Celtic *eriro- (“eagle”) (compare Welsh eryr, Breton erer), from Proto-Indo-European *h₂or-, *h₃er- (“large bird”).
Forms with the definite article:
- iolar fíréan (“golden eagle”)
- iolar hairpí (“harpy eagle”)
- iolar dingearrach (“eaglehawk, wedge-tailed eagle”)
- iolar maol (“American eagle, bald eagle”)
- iolar mara (“white-tailed eagle, sea eagle, erne”)
- iolar dúbailte (“double eagle, albatross”)
|Radical||Eclipsis||with h-prothesis||with t-prothesis|
|Note: Some of these forms may be hypothetical. Not every
possible mutated form of every word actually occurs.