γνησιότης

ητος, ἡ
A. legitimate birth, ἀπ’ ἀμφοῖν Arist. Rh. 1360b35, cf. Phld. Hom. p.50 O.
II. genuineness, sincerity, μετὰ πάσης γ. Poxy. 140.16 (vi A. D.).
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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