Polite (adjective)

1. Having or showing good manners or respect for other people.
2. Formal and courteous in behavior or speech.
3. Well-mannered and well-behaved.

Origin:

Late 16th century: from french poli "polished", from latin politus, past participle of polire "make smooth, polish", from greek polos "grey" (because smooth surfaces reflect light and appear grey).

Examples:

1. He was polite to everyone he met.
2. She was always very polite.
3. He was polite in his letter.
4. She was polite in her request.
5. He was raised to be polite and considerate.