ἐλεφαντοφανής
From LSJ
Δελφῖνα νήχεσθαι διδάσκεις: ἐπὶ τῶν ἐν ἐκείνοις τινὰ παιδοτριβούντων, ἐν οἷς ἤσκηται → Teaching dolphins to swim: is applied to those who are teaching something among people who are already well versed in it
English (LSJ)
ἐλεφαντοφανές, like ivory, ὀδόντες Eust.1877.42.
Spanish (DGE)
-ές marfileño ὀδόντες Eust.1877.42.
German (Pape)
[Seite 797] ές, wie ein Elephant erscheinend, Sp.
Greek (Liddell-Scott)
ἐλεφαντοφανής: -ές, ὁ φαινόμενος ὡς ἐλέφας (δηλ. ὡς ὀδοὺς ἐλέφαντος), Εὐστ. Ὀδ. 1877, 42.