undydd

Welsh

Etymology

un (“one”) +‎ dydd (“day”).

Pronunciation

• (North Wales) IPA^(key): /ˈɨ̞ndɨ̞ð/
• (South Wales) IPA^(key): /ˈɪndɪð/
• Rhymes: -ɨ̞ndɨ̞ð

Noun

undydd m (uncountable)

1. a period of one day
2. (idiomatic) a short time

   Synonyms: oesfyr, unnos, undydd unnos

3. (idiomatic) one day, some day (unspecified time in the past or future future)

Derived terms

• nid mewn undydd y codwyd Rhufain (“Rome wasn't built in a day”)
• undydd a blwyddyn (“a year and a day”)
• undydd unnos (“a day and a night, ephemeral”)
• yr undydd (“the same day”)

Related terms

• deuddydd (“two days”)
• tridiau (“three days”)

Adjective

undydd (feminine singular undydd, plural undydd, not comparable)

1. one-day, lasting for a single day
2. ephemeral, transient

   Synonyms: oesfyr, unnos, undydd unnos

Mutation

Mutated forms of undydd

radical	soft	nasal	h-prothesis
undydd	unchanged	unchanged	hundydd

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

References

• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “undydd”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies