θηγαλέος
From LSJ
Μισῶ σοφιστήν, ὅστις οὐχ αὑτῷ σοφός → I hate the sage who is not wise for himself → Odi professum sapere, qui sibi non sapit → Den Weisen hass' ich, der in eigner Sache Tor
English (LSJ)
α, ον, (θήγω)
A pointed, sharp, στάλικες AP6.109 (Antip.); τρύφος ib.7.542 (Flacc.). II Act., sharpening, c. gen. rei, ib.6.68 (Jul. Aegypt.):—also θηγάνεος, Hsch.
German (Pape)
[Seite 1206] geschärft, scharf, πυρὶ θηγαλέους ὀξυπαγεῖς στάλικας Antip. Sid. 17 (VI, 109); schärfend, λίθος θηγαλέη καλάμων Iul. Aeg. 11 (VI, 68).