cogovernor
Etymology
From co- + governor.
cogovernor means someone who governs something together with someone else. Lexicurio rates it Rare gem — a strength score of 72 out of 100.
noun
- Someone who governs something together with someone else“Students[…] are cogovernors in the Assembly of Shimer College (which sets policy under the board of trustees and is constituted as "a participatory democracy"), and cosustainers of the college's day-to-day operations.”