propraetorial

pro·prae·tor

 (prō-prē′tər)
n.
An ancient Roman official, appointed to be the chief administrator of a province after serving his term of office as praetor.

[Latin prōpraetor : prō-, for; see pro-1 + praetor, praetor; see praetor.]

pro′prae·to′ri·al (prō′prĭ-tôr′ē-əl), pro′prae·to′ri·an (-ən) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

propraetorial

(ˌprəʊprɪˈtɔːrɪəl) or

propraetorian

adj
of, or relating to, a propraetor
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014