φρούραρχος

English (LSJ)

ὁ,

   A commander of a watch, or commandant of a garrison, IG12.10.13, al., X. An.1.1.6, Cyr.5.3.17, Pl.Lg.760d, Men.Kol.60, Aen.Tact.22.20, Plb.21.42.1, PTeb.6.13 (ii B. C.), OGI111.16 (Egypt, ii B. C.), etc.; οἱ φ. the guardians, Pl.Lg.843d: metaph., [θεοὶ] ἑκάστῳ τὸν τρόπον συνήρμοσαν φ. Men.Epit.554 (spelt φρούαρχος Wilcken Chr.162 i 11 (ii B. C.), and v.l. in Plb. l.c.).    II gaoler, Aristaenet. 1.20.