Old IrishEdit

Alternative formsEdit


From Proto-Celtic *brawū (millstone), from Proto-Indo-European *gʷréh₂wō (heavy stone), from *gʷréh₂us (heavy).



brao f (genitive broon)

  1. quern, millstone
    • c. 845, St. Gall Glosses on Priscian, published in Thesaurus Palaeohibernicus (reprinted 1975, Dublin Institute for Advanced Studies), edited and with translations by Whitley Stokes and John Strachan, vol. II, pp. 49–224, Sg. 184b3
      Tuarcain do·fuaircitis inna grán la arsidi resiu arista brao.
      The grains used to be crushed by pounding by the ancients before a quern was invented.
    • c. 850, Book of Armagh, folio 10a2, published in Thesaurus Palaeohibernicus, vol. 2, p. 45:
      broon glosses Latin molae


Not attested in the plural until Middle Irish

Feminine n-stem
Singular Dual Plural
Nominative brao, bráu, broo
Vocative brao, bráu, broo
Accusative *broïnN
Genitive broon
Dative *broïnL, braoL
Initial mutations of a following adjective:
  • H = triggers aspiration
  • L = triggers lenition
  • N = triggers nasalization


  • Middle Irish: bró


Old Irish mutation
Radical Lenition Nasalization
brao brao
pronounced with /v(ʲ)-/
Note: Some of these forms may be hypothetical. Not every
possible mutated form of every word actually occurs.

Further readingEdit