vaticinator
From LSJ
Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → For extreme diseases, extreme methods of cure, as to restriction, are most suitable.
Latin > English (Lewis & Short)
vātĭcĭnātor: ōris, m. id.
I a soothsayer, prophet, Ov. P. 1, 1, 42; Prud. Ham. 343.