ἀρκόφθαλμος
From LSJ
Ἐρωτώμενος διὰ τί ὀλίγους ἔχει μαθητάς, ἔφη ὅτι ἀργυρέᾳ αὐτοὺς ἐκβάλλω ῥάβδῳ → When asked why he had so few pupils, he replied ‘I chase them away with a silver stick (Diogenes Laertius 6.4.5, on the philosopher Antisthenes)
Greek (Liddell-Scott)
ἀρκόφθαλμος: ὁ, εἶδος θάμνου, τὸ χρυσόγονον, Διοσκ. 4. 56.