What does "moot" mean?

Additional senses

1. 2.Specifically: To discuss by way of exercise; to argue for practice; to propound and discuss in a mock court. First a case is appointed to be mooted by certain young men, containing some doubtful controversy. Sir T. Elyot.
2. 3.To argue or plead in a supposed case. There is a difference between mooting and pleading; between fencing and fighting. B. Jonson.
3. 4.A meeting for discussion and deliberation; esp., a meeting of the people of a village or district, in Anglo-Saxon times, for the discussion and settlement of matters of common interest; -- usually in composition; as, folk-moot. J. R. Green.
4. 5.Etym: [From Moot, v.] A discussion or debate; especially, a discussion of fictitious causes by way of practice. The pleading used in courts and chancery called moots. Sir T. Elyot. Moot case, a case or question to be mooted; a disputable case; an unsettled question. Dryden. -- Moot court, a mock court, such as is held by students of law for practicing the conduct of law cases. -- Moot point, a point or question to be debated; a doubtful question.
5. 6.Subject, or open, to argument or discussion; undecided; debatable; mooted.