conservator

Etymology

From Middle English conservatour, from Anglo-Norman conservatour, from Latin cōnservātor (“one who conserves”), agent noun from cōnservō (“I preserve”).

noun

1. One who conserves, preserves or protects something.
   2014, Paul Salopek, Blessed. Cursed. Claimed., National Geographic (December 2014)https://web.archive.org/web/20150212214621/http://ngm.nationalgeographic.com/2014/12/pilgrim-roads/salopek-text Chlouveraki, a tenacious archaeological conservator, has salvaged antiquities all over the Middle East.
   the great Creator and Conservator of the world 1726, William Derham, Physico-Theology
2. (law) A person appointed by a court to manage the affairs of another; similar to a guardian but with some powers of a trustee.
   The Governor [of Missouri] is […] the conservator of the peace 1839, John Bouvier, Law Dictionary
3. An officer in charge of preserving the public peace, such as a justice or sheriff.
4. (Roman Catholicism) A judge delegated by the pope to defend certain privileged classes of persons from manifest or notorious injury or violence, without recourse to a judicial process.
5. A professional who works on the conservation and restoration of objects, particularly artistic objects.