亲切用英语可以说作 "kind"。它来自古英语 "gecynd"，意思是"关系密切的、亲密的"。例句：

She is a very kind person. (她是一个非常亲切的人。)

He always greets me with a kind smile. (他总是用亲切的微笑和我打招呼。)

I appreciate your kind words of support. (我感谢您亲切的支持话语。)