IPA: /dɛˈsɛm.vɪˌreɪt/
KK: /dɛˈsɛmˌvɪrɪt/
A group of ten individuals who hold power or authority, especially in a governmental context.
The decemvirate was responsible for creating new laws in ancient Rome.
Decemvirate → It is formed from "decem" (meaning ten) and "vir" (meaning man). The term refers to a governing body of ten men, particularly in ancient Rome.
Think of 'ten' ('decem') men ('vir') working together in a governing role — that's what a decemvirate is.