εὐπίνεια
From LSJ
μηδὲν κοτυλίζειν, ἀλλὰ καταπάττειν χύδην → not to sell by the cupful, but to dole out indiscriminately | not to sell by retail but wholesale
English (LSJ)
[ῐ], ἡ, perh.
A elegance of style, Longin.30.1; cf.sq.11. 2 εὐπινείας χάριν for embellishment, Heliod. ap. Orib.49.4.42.
German (Pape)
[Seite 1088] ἡ, alte, einfache und kräftige Schönheit im Ausdruck, Longin. 30, 1; vgl. nitor obsoletus, Auct. ad Herenn. 4, 46.