dau ar bymtheg

Welsh

Welsh numbers ^(edit)

[a], [b] ←  16	17	18  → [a], [b], [c], [d]
Cardinal (masculine / vigesimal): dau ar bymtheg     Cardinal (feminine / vigesimal): dwy ar bymtheg     Cardinal (decimal): un deg saith     Ordinal (masculine / vigesimal): ddeufed ar bymtheg, deufed ar bymtheg     Ordinal (feminine / vigesimal): ddwyfed ar bymtheg, dwyfed ar bymtheg     Ordinal: ail ar bymtheg, eilfed ar bymtheg     Ordinal abbreviation: 17eg
Welsh Wikipedia article on 17

Alternative forms

(nonstandard) dauarbymtheg

Etymology

From dau (“two”) +‎ ar (“on”) +‎ pymtheg (“fifteen”).

Pronunciation

• (North Wales, standard, colloquial) IPA^(key): /ˌdaɨ̯ ar ˈbəmθɛɡ/
  • (North Wales, colloquial) IPA^(key): /ˌdaɨ̯ ar ˈbəmθaɡ/
• (South Wales) IPA^(key): /ˌdai̯ ar ˈbəmθɛɡ/

Numeral

dau ar bymtheg m (feminine dwy ar bymtheg)

1. (cardinal number, vigesimal) seventeen

   Synonym: un deg saith

   • 1853, Y dysgedydd, page 384:

     Y mae yn dda genym weled cynnifer a dauarbymtheg o feirdd wedi cymeryd y maes yn erbyn yr arferiad gwrthun o gysgu mewn addoliad.

     We are glad to see as many as seventeen poets have taken the field against the monstrous practice of sleeping in worship.

Usage notes

• The vigesimal dau ar bymtheg can only be used with masculine nouns whereas the synonymous decimal un deg saith can be used with nouns of any gender.

Mutation

Welsh mutation
radical	soft	nasal	aspirate
dau ar bymtheg	ddau ar bymtheg	nau ar bymtheg	unchanged
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.