στρατοπεδάρχης stratopedarchēs strat-op-ed-ar'-khace From G4760 and G757; a ruler of an army, that is, (specifically) a Praetorian praefectKJV Usage: captain of the guard.
Acts 28:16 (KJV_Strongs) 16 G1161 And G3753 when G2064 we came [G5627] G1519 to G4516 Rome G1543 , the centurion G3860 delivered [G5656] G1198 the prisoners G4759 to the captain of the guard G1161 : but G3972 Paul G2010 was suffered [G5681] G3306 to dwell [G5721] G2596 by G1438 himself G4862 with G4757 a soldier G5442 that kept [G5723] G846 him.
Acts 28:16 (Tischendorf) 16 G3753 ADV Ὅτε G1161 CONJ δὲ G1525 V-2AAI-1P εἰσήλθομεν G1519 PREP εἰς G3588 T-ASF τὴν G4516 N-ASF Ῥώμην, G2010 V-API-3S ἐπετράπη G3588 T-DSM τῷ G3972 N-DSM Παύλῳ G3306 V-PAN μένειν G2596 PREP καθ' G1438 F-3ASM ἑαυτὸν G4862 PREP σὺν G3588 T-DSM τῷ G5442 V-PAP-DSM φυλάσσοντι G846 P-ASM αὐτὸν G4757 N-DSM στρατιώτῃ.