στερεότης

ητος, ἡ
A. hardness, firmness, solidity, Pl. Ti. 74e, Arist. PA 664b2; of atoms, Epicur. Ep. 1p.8U.: metaph. of persons, ς. καὶ καρτερία Cat.Cod.Astr. 5(3).84.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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