praeparator
From LSJ
αἰθὴρ δ᾽ ἐλαφραῖς πτερύγων ῥιπαῖς ὑποσυρίζει (Aeschylus, Prometheus Bound 126) → The bright air fanned | whistles and shrills with rapid beat of wings.
Latin > English (Lewis & Short)
praepărātor: ōris, m. praeparo,
I a preparer (eccl. Lat.): Joannes praeparator viarum Domini, Tert. adv. Marc. 4, 33.