praemonstrator
From LSJ
Ἔνιοι δὲ καὶ μισοῦσι τοὺς εὐεργέτας → Nonnulli oderunt adeo beneficos sibi → Es hassen manche sogar ihre Wohltäter
Latin > English (Lewis & Short)
praemonstrātor: ōris, m. id.,
I one who shows or points out beforehand, a guide, director: monitor et praemonstrator, Ter. Heaut. 5, 1, 2.