also: がせい
noun
A formal New Year's greeting used primarily in writing, especially on New Year's cards (年賀状). Not typically used in spoken conversation.
年賀状に「賀正」と書く。
Write 'Happy New Year' on a New Year's card.
賀正の挨拶を申し上げます。
I wish you a Happy New Year.
More formal and respectful New Year's greeting, often used in business correspondence. 賀正 is shorter and slightly less formal.
Common spoken New Year's greeting. 賀正 is a written, formal expression not used in casual speech.
Compound of 賀 (congratulation) and 正 (New Year). The reading がしょう is the standard Sino-Japanese reading; がせい is a less common variant.