blwydd

Etymology
From, from , from , related to (the source of  and 🇨🇬), possibly from , though the semantic connection is weak. See also 🇨🇬, 🇨🇬, 🇨🇬.

Celtic cognates include 🇨🇬, 🇨🇬; 🇨🇬, 🇨🇬.

Noun

 * 1) year

Usage notes
In Welsh, refers to age and is the word used for a single year and is also found after numbers. The plural is little utilised. When referring to any other kind of year, the word is in the singular,  in the plural and the special form  is used after numbers.

Unlike other nouns, takes a nasal mutation when it appears after the numbers pum, saith, wyth, naw, or deg.