1A member of a group consisting of seven men or (in later use) people.
In early use often with reference to the seven original electors of the Holy Roman Empire.
A member of the college of priests (more fully septemviri epulones) responsible for the organization of the sacrificial banquet in honour of the Capitoline gods known as epulum Iovis (banquet of Jupiter).
This college originally comprised three members, before being increased to seven, and finally to ten during the late Republic.
Late 16th century; earliest use found in Lodowick Lloyd (fl. 1573–1607). From classical Latin septemvir (chiefly in plural septemvirī) member of the college of priests responsible for the organization of certain sacred feasts, in post-classical Latin also denoting an elector in the Holy Roman Empire from septem seven + vir man.