Welsh

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Welsh numbers (edit)
[a], [b], [c], [d] ←  18 19 20  → [a], [b], [c]
    Cardinal (feminine / vigesimal): pedair ar bymtheg
    Cardinal (masculine / vigesimal): pedwar ar bymtheg
    Cardinal (decimal): un deg naw
    Ordinal (masculine): pedwerydd ar bymtheg
    Ordinal (feminine): pedwaredd ar bymtheg
    Ordinal abbreviation: 19eg

Etymology

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From pedair (four) +‎ ar (on) +‎ pymtheg (fifteen).

Pronunciation

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Numeral

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pedair ar bymtheg f

  1. (cardinal number, vigesimal) feminine of pedwar ar bymtheg
    Synonym: un deg naw

Usage notes

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  • The vigesimal pedair ar bymtheg can only be used with feminine nouns whereas the synonymous decimal un deg naw can be used with nouns of any gender.

Mutation

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Mutated forms of pedair ar bymtheg
radical soft nasal aspirate
pedair ar bymtheg bedair ar bymtheg mhedair ar bymtheg phedair ar bymtheg

Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.