I’ve come across this particular error a lot lately, especially and unfortunately in a quite a few of my text/work books for University, which just goes to show that relying solely on a spellchecker is NOT a good idea.
The correct phrase is ‘it’s a MOOT point’ which means that though the point may be up for discussion, circumstances render it not worth while discussing or cogent to the matter at hand.
“Moot” is a very old word related to “meeting,” specifically a meeting where serious matters are discussed. Oddly enough, a moot point can be a point worth discussing at a meeting (or in court)-an unresolved question-or it can be the opposite: a point already settled and not worth discussing further. At any rate, “mute point” is simply wrong, as is the less common “mood point.” (taken from http://www.wusu.edu)
I can’t say that I have come across anyone using the term “mood point” which is probably a good thing as the mere mention sets my teeth on edge.
Let us hope that the trend towards using “mute point” even in jest does not continue, “moot” is a lovely old word, full of a rich history and meaning.
And today I find that something I always thought was correct was in fact wrong, for years I was under the impression that a group of Owls was called a Moot, today I am sadly disambiguated, a group of Owls is called a Parliament. I am sadly disappointed, a Moot sounds much more distinguished than that rabble we call Parliament.