sextumvirate
/sɛksˈtʌmvɪrət/noun
A group of six; especially a group of six powerful or prominent people.
- In the 18th and 19th cent., frequently with allusion to Swift..
Origin
Early 18th century; earliest use found in Jonathan Swift (1667–1745), writer and dean of St Patrick's Cathedral, Dublin. From classical Latin sextus sixth + -umvirate.