"The etymology of consociation derives from the Latin for “with” (cum) and “society” (societas). Consociatio in Latin was usually translated medieval usages as “union” or “connection.” This etymological legacy survives in the notion of consociation as a “society of societies”, or “union of societies”.
Consociation involves both self-rule for each partner to the consociation, and shared-rule, between the representatives of each partner. In combining autonomy and power-sharing consociation.
A political arrangement in which various groups, such as ethnic or racial populations within a country or region, share power according to an agreed formula or mechanism." (https://www.consocio.org/)