ἐναγωνιστέον

From LSJ

ὣς ὁ μὲν ἔνθ' ἀπόλωλεν, ἐπεὶ πίεν ἁλμυρὸν ὕδωρ → so there he perished, when he had drunk the salt water

Source

Spanish (DGE)

hay que combatir una enfermedad ταῖς ἐμβροχαῖς καὶ τοῖς πιλήμασι mediante linimentos y compresas Orib.Syn.8.16.2.