Officious (adjective)

Excessively eager to offer one's services or give advice, especially where it is neither wanted nor needed; meddlesome; intrusive.

Origin:

Derived from the latin word "officiosus" meaning "eager to serve", it was first recorded in the late 16th century.

Examples:

1. The officious clerk at the department store followed her around the store, eager to help.
2. He was so officious that he would interrupt people's conversations to give them advice.
3. The officious waiter was always hovering, ready to refill her glass.
4. She found the officious behavior of the security guard overbearing and intrusive.
5. The officious manager was always trying to tell his staff how to do their jobs.