The word "polite" describes behavior that is respectful and considerate of others. When someone is polite, they use good manners, show kindness, and communicate in a way that is gracious. Politeness is often associated with being formal and courteous, and it usually involves saying "please," "thank you," and addressing people in a respectful manner.
The word "polite" comes from the Latin "politus," which means "polished" or "refined." It evolved through the Old French word "polir," which means "to polish," eventually leading to the Middle English "polite." The underlying idea is of improving oneself or one's manners to be more acceptable in social situations.