φρούαρχος

A. commander of a watch, or commandant of a garrison, IG 12.10.13, 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.), OGI 111.16 (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.