寒かんの入いり

noun

beginning of midwinter; start of the coldest season

Refers to the first day of the traditional 寒 (kan) period, around January 5th or 6th, marking the onset of the coldest time of year in the old calendar.

• 寒かんの入いりを過すぎると、本ほん格かく的てきな冬ふゆの寒さむさがやってくる。

  After the beginning of midwinter, the real winter cold sets in.