quorum

 
Pronunciation: /ˈkwɔːrəm/

noun (plural quorums)

  • the minimum number of members of an assembly or society that must be present at any of its meetings to make the proceedings of that meeting valid.

Origin:

late Middle English (referring to justices of the peace): used in commissions for committee members designated by the Latin quorum vos … unum (duos, etc.) esse volumus 'of whom we wish that you … be one (two, etc.)'