beithir
Irish
    
    Etymology
    
From Old Irish beithir, possibly from Proto-Celtic *betrixs.
Noun
    
beithir f (genitive singular beithre or beithreach, nominative plural beithreacha)
Declension
    
Second declension
| 
 Bare forms 
  | 
 Forms with the definite article 
  | 
Fifth declension
| 
 Bare forms 
  | 
 Forms with the definite article 
  | 
Mutation
    
| Irish mutation | ||
|---|---|---|
| Radical | Lenition | Eclipsis | 
| beithir | bheithir | mbeithir | 
| Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs. | ||
Further reading
    
- G. Toner, M. Ní Mhaonaigh, S. Arbuthnot, D. Wodtko, M.-L. Theuerkauf, editors (2019), “beithir”, in eDIL: Electronic Dictionary of the Irish Language
 - Dinneen, Patrick S. (1904), “beiṫir”, in Foclóir Gaeḋilge agus Béarla, 1st edition, Dublin: Irish Texts Society, page 64
 - Ó Dónaill, Niall (1977), “beithir”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN
 
Old Irish
    
    Etymology
    
Possibly from Proto-Celtic *betrixs. The sense of “bear”, according to MacBain, was undoubtedly influenced by or borrowed from Proto-Germanic *berô, but the word also had the sense of “wild beast, serpent, monster”, and the like, which could be a Celtic descendant of the source of Latin bēstia (“wild beast”), itself of uncertain origin[1]
Inflection
    
| Feminine k-stem | |||
|---|---|---|---|
| Singular | Dual | Plural | |
| Nominative | beithir | bethraigL | bethraig | 
| Vocative | beithir | bethraigL | bethracha | 
| Accusative | bethraigN | bethraigL | bethracha | 
| Genitive | bethrach | bethrach | bethrachN | 
| Dative | bethraigL | bethrachaib | bethrachaib | 
Initial mutations of a following adjective:
  | |||
Mutation
    
| Old Irish mutation | ||
|---|---|---|
| Radical | Lenition | Nasalization | 
| beithir | beithir pronounced with /v(ʲ)-/  | 
mbeithir | 
| Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.  | ||
References
    
- MacBain, Alexander; Mackay, Eneas (1911), “beithir”, in An Etymological Dictionary of the Gaelic Language, Stirling, →ISBN
 
Further reading
    
- G. Toner, M. Ní Mhaonaigh, S. Arbuthnot, D. Wodtko, M.-L. Theuerkauf, editors (2019), “beithir”, in eDIL: Electronic Dictionary of the Irish Language
 
Scottish Gaelic
    
    Etymology
    
From Old Irish beithir, possibly from Proto-Celtic *betrixs.
Noun
    
beithir m (genitive singular beathrach, plural beithrichean or beathraichean)
Mutation
    
| Scottish Gaelic mutation | |
|---|---|
| Radical | Lenition | 
| beithir | bheithir | 
| Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs. | |
Further reading
    
- MacBain, Alexander; Mackay, Eneas (1911), “beithir”, in An Etymological Dictionary of the Gaelic Language, Stirling, →ISBN
 - Edward Dwelly (1911), “beithir”, in Faclair Gàidhlig gu Beurla le Dealbhan [The Illustrated Gaelic–English Dictionary], 10th edition, Edinburgh: Birlinn Limited, →ISBN
 - G. Toner, M. Ní Mhaonaigh, S. Arbuthnot, D. Wodtko, M.-L. Theuerkauf, editors (2019), “beithir”, in eDIL: Electronic Dictionary of the Irish Language