undydd

Welsh

Etymology

un (“one”) +‎ dydd (“day”).

Pronunciation

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

Noun

undydd m (uncountable)

a period of one day
(idiomatic) a short time
Synonyms: oesfyr, unnos, undydd unnos
(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)

one-day, lasting for a single day
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