新年早々
新年になること
新年に.
to celebrate the New Year
I wish you a happy New Year―A happy New Year to you!―(手紙に書けば)―With New Year's greetings―With the compliments of the season.
to celebrate the New Year
the celebration of the New Year―the New Year's festivities―(述べる祝いなら)―the New Year's greetings
(A) Happy New Year!
(I wish you a) Happy New Year!―The compliments of the season to you!