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Welsh numbers (edit)
 ←  1  ←  9 10 11  → [a], [b], [c] 20  → 
    Cardinal: deg, (before a nasal or optionally a vowel) deng
    Ordinal: degfed
    Ordinal abbreviation: 10fed

Alternative forms




From Proto-Brythonic *degβ̃ed, from Proto-Celtic *dekametos, equivalent to deg (ten) +‎ -fed (-th).





degfed (feminine singular degfed, plural degfed, not comparable)

  1. (ordinal number) tenth

Derived terms




degfed m or f (plural degfedau or degfedi)

  1. tenth part of a whole
    Synonyms: degfed ran, degwm, degymiad


Welsh mutation
radical soft nasal aspirate
degfed ddegfed negfed unchanged
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

Further reading

  • R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “degfed”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies
  • Griffiths, Bruce, Glyn Jones, Dafydd (1995) Geiriadur yr Academi: The Welsh Academy English–Welsh Dictionary[1], Cardiff: University of Wales Press, →ISBN
  • Delyth Prys, J.P.M. Jones, Owain Davies, Gruffudd Prys (2006) Y Termiadur: termau wedi'u safoni; standardised terminology[2] (in Welsh), Cardiff: Awdurdod cymwysterau, cwricwlwm ac asesu Cymru (Qualifications curriculum & assessment authority for Wales), →ISBN, page 144