óen

From Old Irish óen, from Proto-Celtic *oinos, from Proto-Indo-European *óynos.

Middle Irish cardinal numbers

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Cardinal : óen     Ordinal : cét-

óen

1. one

• Irish: aon
• Manx: un
• Scottish Gaelic: aon

óen

1. the same
   • c. 1000, “The Tale of Mac Da Thó's Pig”, in Ernst Windisch, editor, Irische Texte, volume 1, published 1800, section 1:

     I n‑oen uair dana tancatar ocus techta Conchobair mic Nessa do chungid in chon chetna.

     At the same time, then, messengers came also from Conchobar Mac Nessa to ask for the same dog.

• Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “óen”, in eDIL: Electronic Dictionary of the Irish Language

• oín

From Proto-Celtic *oinos, from Proto-Indo-European *óynos.

• IPA^(key): /oːi̯n/

Old Irish cardinal numbers

	1	2  >
Cardinal : óen     Ordinal : cétnae     Male personal : óenar

óen

1. one

When used to count objects, this numeral precedes the noun, whose word-initial consonant undergoes lenition.

• óen ḟer ― one man
• óen ṡúil ― one eye

óen

1. the same
2. single (especially after cech (“every”))
   • c. 800–825, Diarmait, Milan Glosses on the Psalms, published in Thesaurus Palaeohibernicus (reprinted 1987, Dublin Institute for Advanced Studies), edited and with translations by Whitley Stokes and John Strachan, vol. I, pp. 7–483, Ml. 53^c3

     cech oín gessid .i. giges Día

     every single supplicant i.e. who will pray to God

• Middle Irish: óen
  • Irish: aon
  • Manx: un
  • Scottish Gaelic: aon

• Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “óen”, in eDIL: Electronic Dictionary of the Irish Language