Uncivilize

v. [UN-² 6 c.] trans. To deprive of civil, civilized, or civic character; to decivilize. Also absol.

1603.  J. Davies (Heref.), Microcosmos, Wks. (Grosart), I. 18/1. When the civill Sword’s vncivilliz’d In mightiest Empires.

1633.  Rowley, Match at Midn., IV. H 2 b. I will uncivillize that injured civilitie which you so scurvily slander.

1690.  T. Burnet, Theory Earth, II. 16. That is commonly the vanity of great empires, to uncivilize in a manner all the rest of the world.

1811.  Henry & Isabella, II. 207. If the principle of force is to be sanctioned, the tendency of it is to uncivilize. Ibid., 212. Nor do I mean to deny that … it would not have the same effect of uncivilizing.