bindingvow

2. A formal agreement in a story that cannot be broken without bad consequences.

In the tale, the wizard's binding vow cost him his magic when he broke it.

3. A marriage promise made before family and friends.

Their binding vow was spoken under the old oak tree.

4. A magical rule that ties a person to their word.

The fairy explained that a binding vow glows when it is spoken.

5. A strong commitment between two friends to always help each other.

The two girls made a binding vow to stay best friends forever.