Unbalance (verb)

To cause to be out of balance or equilibrium.

Origin:

From un- + balance.

Examples:

1. The weight of the package unbalanced the cart.
2. His sudden movement unbalanced her, and she fell.
3. The additional load unbalanced the scale.
4. The unexpected news unbalanced her emotionally.
5. The extra weight on one side of the boat unbalanced it.