ὀχυρότης

ητος, ἡ
A. firmness, strength, esp. of a stronghold or country, ‐τητος μετέχειν Aen. Tact.22.2, cf. J. AJ 3.14.2: pl., Plb. 5.62.6,7.15.2.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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