proquaestor
noun
pro·quaes·tor
prōˈkwestə(r)
: one acting for a quaestor
especially : a magistrate associated with a proconsul in the administration of an ancient Roman province
Word History
Etymology
Late Latin, from Latin pro quaestore, from the phrase pro quaestore (acting) for a quaestor, from pro for + quaestore, ablative of quaestor