ugain namyn dwy

Welsh

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
Welsh Wikipedia article on 18

Etymology

From ugain (“twenty”) +‎ namyn (“minus”) +‎ dwy (“two”).

Pronunciation

• (North Wales) IPA^(key): /ˌɪɡai̯n ˌnamɨ̞n ˈdʊɨ̯/
• (South Wales, standard, colloquial) IPA^(key): /ˌiːɡai̯n ˌnamɪn ˈdʊi̯/, /ˌɪɡai̯n ˌnamɪn ˈdui̯/
  • (South Wales, colloquial) IPA^(key): /ˌiːɡɛn ˌnamɪn ˈdʊi̯/, /ˌɪɡɛn ˌnamɪn ˈdui̯/

Numeral

ugain namyn dwy f

1. (cardinal number, vigesimal) feminine of ugain namyn dau (“eighteen”)

   Synonyms: deunaw, un deg wyth, tair ar bymtheg

   • 1886 October 23, “Cofiant y Diweddar Barch. Henry Rees”, in Y Goleuad, page 4:

     Syr,—Wele yn agos i ugain o flynyddoedd — ugain namyn dwy – er's pan hunodd yr enwog Henry Rees, ac hyd yma mae ei enw wedi ei adael heb gymaint a hyn o goffadwriaeth ar ei ol.

     Sir, it has been nearly twenty years - eighteen, to be precise - since the famous Henry Rees died, and so far there has been little done to commemorate him.

     (literally, “Sir, - See, nearly twenty years - eighteen - since the famous Henry Rees slept, and so far his name has been left without much commemoration of him.”)

Mutation

Welsh mutation
radical	soft	nasal	h-prothesis
ugain namyn dwy	unchanged	unchanged	hugain namyn dwy
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.