誓せい詞し

noun

vow; oath; pledge

A formal, often written, declaration of one's commitment or promise, used in ceremonies, contracts, or solemn personal resolutions.

• 結けっ婚こん式しきで新しん郎ろう新しん婦ぷが誓せい詞しを読よみ上あげた。

  The bride and groom read their vows at the wedding ceremony.

• 彼かれは禁きん酒しゅの誓せい詞しを書かいた。

  He wrote a pledge to abstain from alcohol.