ἄφρουρος

ον
A. off one's guard, Pl. Phdr. 256c; ἄ. καὶ ἄνοπλοι Plu. Demetr. 32.
2. free from military duty, Arist. Pol. 1270b4.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project