πυξάκανθα
From LSJ
ἢ λέγε τι σιγῆς κρεῖττον ἢ σιγὴν ἔχε → either say something better than silence or keep silence (Menander)
English (LSJ)
[ᾰκ], ἡ,
A thorn like the box-tree,= λύκιον, Dsc.1.100: also πυξάκανθος, Lat. pyxacanthus, Plin.HN12.31, 24.125, Gal.12.63.
German (Pape)
[Seite 818] ἡ, Buxbaumdorn, sonst Λύκιον.
Greek (Liddell-Scott)
πυξάκανθα: ἡ, εἶδος ἀκάνθης ὁμοίας πρὸς πύξον, (πυξάρι), ἀλλαχοῦ λύκιον, Διοσκ. 1. 132, Πινδ. 12. 15.