blwyddyn

From Middle Welsh blwyðyn, from Old Welsh bloidin, from Proto-Brythonic *bluɨðẹn (compare Cornish bledhen, Breton blizen), from Proto-Celtic *blēdanī (compare Old Irish blíadain), from *blēdū (compare Welsh blwydd (“age; year(s) old”)).[1]

• (North Wales) IPA^(key): /ˈblʊɨ̯ðɨ̞n/
• (South Wales) IPA^(key): /ˈblʊi̯ðɪn/
• Rhymes: -ʊɨ̯ðɨ̞n

blwyddyn f (plural blynyddoedd or blynyddau)

1. year

In Welsh, blwydd refers to age and is the word used for a single year and is also found after numbers. The plural blwyddi is little utilised. When referring to any other kind of year, the word is Lua error in Module:utilities at line 142: attempt to perform arithmetic on local 'h' (a nil value) in the singular, blynyddoedd in the plural and the special form blynedd is used after numbers.

• Blwyddyn Newydd Dda (“Happy New Year”)
• undydd a blwyddyn (“a year and a day”)

• eleni (“this year”)
• llynedd (“last year”)

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