初しょ夜や

noun

wedding night; first night of marriage

Refers to the first night after a wedding ceremony; somewhat formal or literary.

• 二人ふたりは初しょ夜やを静しずかに過すごした。

  The two spent their wedding night quietly.

noun

first watch of the night

Historical term for the first division of the night in the old timekeeping system; rarely used in modern contexts.

• 昔むかしの時じ刻こくでは、初しょ夜やは戌いぬの刻こくにあたる。

  In the old time system, the first watch of the night corresponds to the hour of the dog.