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ugain - Wiktionary, the free dictionary

From Wiktionary, the free dictionary

Welsh numbers (edit)
200
[a], [b] ←  10 [a], [b], [c] ←  19 20 21  → [a], [b] 30  → [a], [b], [c]
2[a], [b]
    Cardinal (vigesimal): ugain
    Cardinal (decimal): dau ddeg, (optionally before a nasal or vowel) dau ddeng
    Ordinal: ugeinfed
    Ordinal abbreviation: 20fed
Welsh Wikipedia article on 20

From Old Welsh uceint, from Proto-Brythonic *ʉgėnt, from Proto-Celtic *wikantī, from Proto-Indo-European *h₁wih₁ḱm̥t, from *dwi(h₁)dḱm̥ti (two-ten).

Compare Latin vīgintī; also Cornish ugens, Breton ugent, Old Irish fiche.

  • Despite being written as u, the initial vowel here is /ɪ/ in north Wales.

ugain

  1. (cardinal number, vigesimal) twenty
    Synonym: dau ddeg

Numerals which employ ugain as their final element, i.e. 21 to 39, use ar (on) to connect it to the preceding element, which causes an aspirate mutation, e.g. un ar hugain (twenty-one), pedwar ar bymtheg ar hugain (thirty-nine). Elsewhere in the language, ar causes a soft rather than aspirate mutation.

ugain m (plural ugeiniau)

  1. twenty
  2. (numeral) score
  • R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “ugain”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies