What is the origin of the idiom "moot point" and when to use it?

The idiom "moot point" originated from Old English, where "moot" referred to a formal assembly or meeting. Over time, the term evolved to signify a hypothetical or debatable point that is subject to discussion or dispute but has no practical consequence or relevance to the current situation. In modern usage, a "moot point" is often used to describe an issue or argument that is rendered irrelevant or academic because it no longer holds practical importance or is no longer applicable to the present circumstances.