ἀρχιμαχαιροφόρος

From LSJ

ἀλλ᾽ ἀμφὶ τοῖς σφαλεῖσι μὴ 'ξ ἑκουσίας ὀργὴ πέπειρα → to those who err in judgment, not in will, anger is gentle | men's wrath is softened toward those who have erred unwittingly

Source

Spanish (DGE)

-ου, ὁ
• Grafía: graf. -μ[α] χερ-
jefe de la guardia armada, PMich.656.6 (I d.C.).