What is the origin of the idiom "backhanded compliment" and when to use it?

The origin of the idiom "backhanded compliment" is not tied to a specific historical event or source but rather emerges from the concept of delivering praise in a way that conceals criticism or negative intent. The term "backhanded" draws from the idea of using the back of one's hand, a less direct and more subtle approach, as opposed to a straightforward or open-handed compliment. It is commonly used in everyday conversations, interpersonal relationships, social gatherings, workplace settings, and even in discussions about public figures or public statements.