Overage (noun)

An amount that is greater than what is expected or required.

Origin:

The word overage is a combination of the prefix "over" meaning "more than necessary" and the noun "age" meaning "a particular stage in life or development", it first recorded use in english is from the late 19th century.

Examples:

1. The store charged an overage fee for the items that were returned.
2. The company had to pay an overage penalty for exceeding the emissions limit.
3. The apartment had an overage charge for electricity usage.
4. The landlord charged an overage fee for the number of guests staying in the house.
5. The bill had an overage charge for going over the allotted data usage.