φρουράρχης
From LSJ
τῶν δ᾽ ὀρθουμένων σῴζει τὰ πολλὰ σώμαθ᾽ ἡ πειθαρχία → But of those who make it through, following orders is what saves most of their lives (Sophocles, Antigone 675f.)
English (LSJ)
ου, ὁ,
A = φρούραρχος, Them.Or.10.136b (pl.).
German (Pape)
[Seite 1310] ὁ, = φρούραρχος.