Welsh

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Welsh numbers (edit)
300
 ←  20  ←  29 30 31  →  40  → 
3[a], [b]
    Cardinal (decimal): tri deg, (optionally before a nasal or vowel) tri deng
    Cardinal (vigesimal): deg ar hugain
    Ordinal: degfed ar hugain
    Ordinal abbreviation: 30ain

Alternative forms

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Etymology

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From degfed (tenth) +‎ ar (on) +‎ ugain (twenty).

Pronunciation

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Adjective

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degfed ar hugain (feminine singular degfed ar hugain, plural degfed ar hugain, not comparable)

  1. (ordinal number) thirtieth

Mutation

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Mutated forms of degfed ar hugain
radical soft nasal aspirate
degfed ar hugain ddegfed ar hugain negfed ar hugain unchanged

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