From Old Welsh uceint, from Proto-Celtic *wikantī, from Proto-Indo-European *h₁wih₁ḱm̥t (compare Latin vīgintī) from *dwi(h₁)dḱm̥ti (“two-ten”). Cognate with Cornish ugens, Breton ugent, Old Irish fiche.
- (North Wales, standard, colloquial) IPA(key): /ˈɪɡai̯n/
- (South Wales, standard) IPA(key): /ˈiːɡai̯n/, /ˈɪɡai̯n/
- Despite being written as u, the initial vowel here is /ɪ/ in north Wales.
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| Cardinal : ugain|
Ordinal : ugeinfed
Decimal : 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)
- (numeral) score
|Note: Some of these forms may be hypothetical. Not every|
possible mutated form of every word actually occurs.