ἀβελτερία

A. silliness, fatuity, Pl. Tht. 174c, Smp. 198d, D. 19.98, Arist. Pol. 1315a3, etc.; ἀ. καὶ νωθρότης Id. Rh. 1390b30; pl., Phld. Lib. p.41O.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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