The word 亲切 is a compound adjective formed by combining two synonymous or semantically reinforcing characters: 亲, which means "close", "dear", or "intimate" (as in family or emotional closeness), and 切, which conveys "earnest", "sincere", or "keenly felt". Together, they create a nuanced meaning that describes a feeling or manner that is warmly friendly, kind, and familiar, often implying a genuine, heartfelt closeness that makes one feel at ease and valued. The formation follows a common pattern in Chinese where two characters with related meanings are joined to express a more abstract and refined concept, in this case, an atmosphere or attitude of sincere amiability.