dydd

Welsh

Etymology

From Middle Welsh dyð, from Old Welsh did, from Proto-Brythonic *dɨð, from Proto-Celtic *dyīus (compare Cornish dydh, Breton deiz, Old Irish día), from Proto-Indo-European *dyḗws (compare Latin diēs).

Pronunciation

• (North Wales) IPA^(key): /dɨːð/
• (South Wales) IPA^(key): /diːð/

• Audio:

  (file)

• Rhymes: -ɨːð

Noun

dydd m (plural dyddiau)

1. day, daytime

Usage notes

• Dydd generally refers to the uncountable period of light. Dydd is also used with the names days of the week and with holiday and festival names. It its in contrast to the word nos (“night, evening”). (cf. French jour, Italian giorno)

yn ystod y dydd ― during the day(time)

dydd Wener ― Friday day(time)

Dydd Calan ― New Year's Day

• Diwrnod, on the other hand, is countable and refers to an individual day and so is the word used when employing a qualifying numeral or adjective. It is there the opposite of noson (“night, evening”). (cf. French journée, Italian giornata)

diwrnod gwych ― a great day

tri diwrnod ― three days

Derived terms

• canol dydd (“the middle of the day”)
• Dydd Calan (“New Year's Day”)
• dydd Gwener (“Friday”)
• Dydd Gŵyl Dewi (“Saint David's Day”)
• dydd Iau (“Thursday”)
• dydd Llun (“Monday”)
• dydd Mawrth (“Tuesday”)
• dydd Mercher (“Wednesday”)
• Dydd Nadolig (“Christmas Day”)
• dydd Sadwrn (“Saturday”)
• Dydd San Steffan (“Boxing Day”)
• dydd Sul (“Sunday”)
• dydd yn ei ddydd (“day by day”)
• golau dydd (“daylight”)
• tridiau (“three days”)
• y dyddiau hyn (“these days”)

 

Mutation

Mutated forms of dydd

radical	soft	nasal	aspirate
dydd	ddydd	nydd	unchanged

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), “dydd”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies