liberticide
Causing the destruction of liberty; oppressive, liberticidal
[…] by aſſembling at her houſe, in ſecret council, the principal chiefs of that conſpiracy, and by keeping up a correſpondence tending to facilitate their liberticide deſigns.
Where it comes from
From French liberticide, coined around the time of the French Revolution. Equivalent to liberty + -cide.
Adapted from the Wiktionary entry liberticide (CC BY-SA 4.0).