A more thorough explanation:

Definition: To deposit property in a place and then forget where it was placed, resulting in the loss of the property.

Example: If you mislay your phone, you might put it down somewhere and then forget where you put it. This can result in the loss of your phone if you are unable to find it.

This definition and example illustrate how mislaying something can result in the loss of that item. It is important to keep track of where you place your belongings to avoid mislaying them and potentially losing them.