expression
A formal, written New Year's greeting, typically used on cards, posters, or formal announcements rather than in casual speech.
年賀状に「恭賀新年」と書いた。
I wrote 'Happy New Year' on the New Year's card.
The standard spoken New Year's greeting; 恭賀新年 is a formal written equivalent.
A Sino-Japanese phrase composed of 恭 (respectful), 賀 (congratulate), 新 (new), and 年 (year).