契ちぎりを交かわす

expression, godan verb (-su)

exchange vows; exchange promises (esp. of marriage)

A formal or literary expression for making a solemn promise, most commonly used for wedding vows or deep personal pledges.

• 二人ふたりは教きょう会かいで永えい遠えんの愛あいの契ちぎりを交かわした。

  The two exchanged vows of eternal love at the church.

• 彼かれらは固かたい契ちぎりを交かわして、将しょう来らいを誓ちかい合あった。

  They exchanged firm promises and pledged their future to each other.