賭誓 [赌－]

Jyutping dou2 sai6
Pinyin dǔ shì

Definitions (Wiktionary)
  1. verb
    to swear; to vow; to pledge
    (syn.) 罚咒, 发誓, 诅喙, 立誓, 賭咒, 盟誓, 宣誓, 詛喙, 赌咒, 咒喙, 起誓, 咒誓, 罰咒, 發誓, 矢誓, 誓言