Overreact (verb)

1. To respond or react in an excessive or extreme way to a situation or event.
2. To display an emotional or physical reaction that is disproportionate to the situation or event.
3. To react in a way that is more intense or dramatic than what is necessary or appropriate.

Origin:

The word 'overreact' is derived from the adjective 'over' meaning 'above' and the verb 'react' meaning 'to respond or act in a particular way to a stimulus or situation'. it has been in use since the 20th century.

Examples:

1. The teacher overreacted to the student's mistake and scolded him harshly.
2. The driver overreacted to the sudden stop of the car in front of him and crashed.
3. The employee overreacted to the criticism and quit the job.
4. The parent overreacted to the child's misbehavior and punished him excessively.
5. The politician overreacted to the opposition's statement and made a public apology.