Learn how to say Politer correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word polite:
adjective (politer, politest)
having or showing behaviour that is respectful and considerate of other people:
they thought she was wrong but were too polite to say so
[attributive] relating to people who regard themselves as more cultured and refined than others:
the picture outraged polite society
late Middle English (in the Latin sense): from Latin politus ‘polished, made smooth’, past participle of polire