propitiator
From LSJ
νέῳ δὲ σιγᾶν μᾶλλον ἢ λαλεῖν πρέπει → it's fitting for a young man to keep silence rather than to speak (Menander)
Latin > English (Lewis & Short)
prŏpĭtĭātor: ōris, m. propitio,
I a propitiator (eccl. Lat.): habentes propitiatorem dominum nostrum Jesum Christum, Hier. Ep. 21, n. 2; Ambros. in Luc. prol. 7.
Latin > French (Gaffiot 2016)
prŏpĭtĭātŏr, ōris, m. (propitio), intercesseur : Hier. Ep. 21, 2.