Courteous (adjective)

Polite, well-mannered, and respectful in behavior or speech.

Origin:

The word "courteous" comes from the old french word "corteis" which means "polite" or "well-bred". it was first used in the 14th century to describe someone who was well-mannered and polite.

Examples:

1. He was always very courteous to his colleagues and customers.
2. The courteous manner in which she handled the situation diffused the tension.
3. He was raised to be courteous to everyone he met.
4. The customer service representative was very courteous and helpful.
5. She was courteous enough to hold the door open for me as I was carrying a heavy load.