Abuse (verb)

1. To use something in a way that is not intended or for a purpose for which it was not designed.
2. To treat someone in a harmful, injurious, or offensive way.
3. To speak to someone in an insulting or threatening manner.

Origin:

The word 'abuse' comes from latin 'abūtī', meaning 'to use up or to make excessive use of'.

Examples:

1. He was accused of abusing his power as a police officer.
2. She reported her husband for physically abusing her.
3. The bully was caught on camera verbally abusing the younger students.
4. The government was accused of abusing its authority by detaining protesters without trial.
5. They have been abusing the system by taking advantage of loopholes.