The term 'kind and courteous' can be summarized by the word 'GRACIOUS', which is an 8-letter word. Graciousness is a quality of being kind, courteous, and generous in one's actions and words. It is often associated with politeness, thoughtfulness, and consideration for others. Graciousness is a trait that is highly valued in many cultures and societies, as it is seen as a sign of respect and good character.