Welsh reference
Selected Welsh numbers up to 100
This list shows selected numbers up to 100, not every number in between. Compare the number forms with their English meanings. Counting forms, forms used with people and examples appear only where the source data records them.
Welsh number list
- 1oneun
Ordinal: cyntaf
un gath (cat)Mutation: soft
un ferch (girl)Mutation: soft
un ardd (garden)Mutation: soft
un fasged (basket)Mutation: soft
oneSource: data/content/welsh/numbers.json#cy-num-1 - 2twodau
Ordinal: ail
Masculine: dau
Feminine: dwy
dau gi (dog)Mutation: soft
dau dŷ (house)Mutation: soft
dwy gath (cat)Mutation: soft
dwy ardd (garden)Mutation: soft
twoSource: data/content/welsh/numbers.json#cy-num-2 - 3threetri
Ordinal: trydydd/trydedd
Masculine: tri
Feminine: tair
tri chi (dog)Mutation: aspirate
tri thŷ (house)Mutation: aspirate
tri pheth (thing)Mutation: aspirate
tair cath (cat)
threeSource: data/content/welsh/numbers.json#cy-num-3 - 4fourpedwar
Ordinal: pedwerydd/pedwaredd
Masculine: pedwar
Feminine: pedair
fourSource: data/content/welsh/numbers.json#cy-num-4 - 5fivepump
Ordinal: pumed
pum niwrnod (day)Mutation: nasal
pum mlynedd (year)Mutation: nasal
fiveSource: data/content/welsh/numbers.json#cy-num-5 - 6sixchwech
Ordinal: chweched
chwe chi (dog)Mutation: aspirate
chwe thŷ (house)Mutation: aspirate
chwe pheth (thing)Mutation: aspirate
chwe cheiniog (penny)Mutation: aspirate
sixSource: data/content/welsh/numbers.json#cy-num-6 - 7sevensaith
Ordinal: seithfed
saith ci (dog)
saith cath (cat)
saith tŷ (house)
sevenSource: data/content/welsh/numbers.json#cy-num-7 - 8eightwyth
Ordinal: wythfed
wyth ci (dog)
wyth cath (cat)
wyth tŷ (house)
eightSource: data/content/welsh/numbers.json#cy-num-8 - 9ninenaw
Ordinal: nawfed
naw ci (dog)
naw cath (cat)
naw tŷ (house)
nineSource: data/content/welsh/numbers.json#cy-num-9 - 10tendeg
Ordinal: degfed
deg ci (dog)
deg cath (cat)
deg tŷ (house)
tenSource: data/content/welsh/numbers.json#cy-num-10 - 11elevenun ar ddegelevenSource: data/content/welsh/numbers.json#cy-num-11
- 12twelvedeuddegtwelveSource: data/content/welsh/numbers.json#cy-num-12
- 13thirteentri ar ddeg
Masculine: tri ar ddeg
Feminine: tair ar ddeg
thirteenSource: data/content/welsh/numbers.json#cy-num-13 - 14fourteenpedwar ar ddeg
Masculine: pedwar ar ddeg
Feminine: pedair ar ddeg
fourteenSource: data/content/welsh/numbers.json#cy-num-14 - 15fifteenpymthegfifteenSource: data/content/welsh/numbers.json#cy-num-15
- 16sixteenun ar bymthegsixteenSource: data/content/welsh/numbers.json#cy-num-16
- 17seventeendau ar bymtheg
Masculine: dau ar bymtheg
Feminine: dwy ar bymtheg
seventeenSource: data/content/welsh/numbers.json#cy-num-17 - 18eighteendeunaweighteenSource: data/content/welsh/numbers.json#cy-num-18
- 19nineteenpedwar ar bymtheg
Masculine: pedwar ar bymtheg
Feminine: pedair ar bymtheg
nineteenSource: data/content/welsh/numbers.json#cy-num-19 - 20twentyugaintwentySource: data/content/welsh/numbers.json#cy-num-20
- 30thirtydeg ar hugainthirtySource: data/content/welsh/numbers.json#cy-num-30
- 40fortydeugainfortySource: data/content/welsh/numbers.json#cy-num-40
- 50fiftyhanner cantfiftySource: data/content/welsh/numbers.json#cy-num-50
- 60sixtytrigainsixtySource: data/content/welsh/numbers.json#cy-num-60
- 70seventydeg a thrigainseventySource: data/content/welsh/numbers.json#cy-num-70
- 80eightypedwar ugaineightySource: data/content/welsh/numbers.json#cy-num-80
- 90ninetydeg a phedwar ugainninetySource: data/content/welsh/numbers.json#cy-num-90
- 100one hundredcantone hundredSource: data/content/welsh/numbers.json#cy-num-100
Decimal and score-based Welsh numbers
Entries for 11–19, 20 and 30–90 show traditional forms only; decimal forms such as un deg un, dau ddeg and chwe deg are not listed. GPC records decimal chwedeg alongside score-based trigain for sixty.
Numbers with nouns
The source examples show that noun changes differ across number forms. Each example keeps its recorded combined form and change type; these examples do not claim a rule for every number or noun.
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