Welsh edit

Welsh numbers (edit)
[a], [b], [c] ←  17 18 19  → [a], [b], [c]
    Cardinal (feminine / vigesimal): tair ar bymtheg, ugain namyn dwy
    Cardinal (decimal): un deg wyth
    Cardinal (vigesimal): deunaw
    Ordinal (masculine / vigesimal): trydydd ar bymtheg
    Ordinal: deunawfed
    Ordinal abbreviation: 18fed

Etymology edit

From un (one) +‎ deg (ten) +‎ wyth (eight).

Pronunciation edit

Numeral edit

un deg wyth

  1. (cardinal number, decimal) eighteen
    Synonym: deunaw

Mutation edit

Welsh mutation
radical soft nasal h-prothesis
un deg wyth unchanged unchanged hun deg wyth
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.