I will return your book tomorrow, cross my heart.
cross my heart
idiomA declaration that the speaker is telling the truth.
Origin
disputed originShortened form of cross my heart and hope to die
I did not break your favorite vase, cross my heart and hope to die.
She looked him directly in the eyes and, cross my heart, swore that she had never seen the missing documents before that moment.
- 01
absence makes the heart grow fonder
One feels more love or affection for those one loves when parted from them.
- 02
all heart
Motivated by positive emotions, especially as productive of exceptionally generous or kind behavior.
- 03
be still my heart
An admonition to oneself to calm down when overly excited, especially in terms of romantic attraction.
- 04
break someone's heart
To cause a person to feel grief, disappointment, or sadness.
- 05
broken heart
A feeling of grief or loss, especially after a failed romantic relationship.
- 06
change of heart
A change of one's opinion, belief or decision.
- 07
come home by weeping cross
To return in disappointment, or in a spirit of contrition.
- 08
cross my heart and hope to die
Added to a promise or a statement to show how serious one was about being honest in what one said