πρέμνον

A. bottom of the trunk of a tree, stump: generally, stem, trunk, h.Merc. 238, Ar. Lys. 267, Lys. 7.19, X. Oec. 19.13, etc.

2. enlarged bark of the stem of the olive, Thphr. HP 1.8.6.

II. base or bottom of a pillar, πρέμνα χθόνια Pi. Fr. 88.4; of a trunk artery, Gal. 5.189, 659: metaph., πρέμνον πράγματος πελωρίου Ar. Av. 321; Ἀρετῆς π. the trunk of the tree Virtue, Q.S. 14.197; of a woman, τὴν ἀρετῆς πινυτὴν . . πρέμνον dub. in Epigr.Gr. 416 (Alexandria).