nadolig llawen

Welsh Expression.

Nadolig comes from old latin which means birthday.

since the welsh for birthday is Penblwydd, this use of 'birthday' is a specific birthday, the birthday of Christ. It casually means Christmas, but of course the word Christmas doesn't literally mean birthday at all.

Llawen means joyful or merry, so Nadolig Llawen is literally merry birthday, and casually means merry xmas.

Welsh translation of 'Merry Christmas'. Lit. 'Christmas Merry', since the Welsh language, like many others, places most adjectives after the noun.

The 'LL' in Llawen is intranscribable in English, but is produced by pressing the front and sides of the tongue to the top of the mouth and simply exhaling, so a sound similar to the 'ttl' in settle, but without the harsh 'T' sound, is produced.