xiāng​xǔ

to promise one's devotion

相许 相許 xiāng​xǔ
to promise one's devotion
To give one's heart or commit oneself to another person; often used in the context of promising to marry or stay with someone for life.
to promise
To agree to give something or to promise a commitment; to give someone your word.
to praise
To praise or show approval for someone's achievements or character.