φρούριον
From LSJ
Βίος κέκληται δ' ὡς βίᾳ πορίζεται → Vi quia paratur vita, vita dicitur → Weil's auf gewaltsamem Streben beruht, heißt's Lebensgut
English (LSJ)
Dor. φρώριον Inscr.Cret.1 xvi 17.15 (Lato, ii B. C.), τό,
A fort, citadel, A.Eu.919 (lyr.), IG12.93.17, etc.; ἀντὶ τοῦ πόλις εἶναι φρούριον κατέστη Th.7.28: esp. hill-fort, as distd. from a fortified town, Id.2.18, 3.18,51, Lys.12.40, X.Cyr.1.4.16, etc.; βίον ὡς οἰκτρὸν ἐξαντλοῦσιν οἱ τὰ φ. τηροῦντες Men.74; τὰ φ. καὶ τὰ ὅρια τῆς Ἀττικῆς IG22.1028.22. 2 prison, of the body, Pl.Ax.366a. II garrison, of a place, A.Pr.801 (where Sch. also expl. by thing to be guarded against); φυλασσόμεσθα φρουρίοισι E.Or.760 (troch.); πόλεως φ., of the Areopagites, A.Eu.949 (anap.).