A.bottom of a jar, cup, or other vessel, τὸν πύνδακα εἰσκρούειν knock in the bottom so as to make the cup hold less, a trick of wine-sellers, Pherecr.105; μέτρῳ τὸν πύνδακα εἰσκεκρουμένῳ μετρεῖν prob. in Thphr.Char.30.11 (ἐκκεκρ- codd., and so “ἐκκρουσαμένους τοὺς π.” Ar.Fr.270 codd. Poll.), cf. Arist.Pr.938a13; bottom of a ship, Mim.Oxy.413.103.
πύνδαξ , α^κος, ὁ, (cf. πυθμήν)