mortifere

ἀλλὰ σὺ μὲν νῦν στῆθι καὶ ἄμπνυε → but you, stop now and catch your breath | but do thou now stand, and get thy breath

Latin > French (Gaffiot 2016)

mortĭfĕrē¹⁶ (mortifer), mortellement, de manière à causer la mort : Plin. Min. Ep. 3, 16, 3.