πνύξ

A. the Pnyx, at Athens, where the ἐκκλησίαι were held, Ar. Eq. 165,751, al.; ἐν πυκνὶ τῇ ἐκκλησίᾳ Docum. ap.D. 18.55.—The Att. forms are gen. πυκνός, IG 12.882, Ar. Eq. 165, Pl. Criti. 112a; dat. πυκνί Ar. Ec. 243, Aeschin. 1.81; acc. πύκνα Th. 8.97 (πνύκα cod. Vat.), Ar. Th. 658, Pl.l.c.; later πνυκί Plu. Them. 19, Luc. Anach. 17, JTr. 11. (Perh. cogn. with πυκνός; cf. πυκναία.)
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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