ἱστοτέλεια
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
German (Pape)
[Seite 1271] ἡ, die Weberinn, Nonn. D. 6, 154. 37, 312.
Greek (Liddell-Scott)
ἱστοτέλεια: ἡ, εἰς τὸ ὑφαίνειν ἐξησκημένη, ὑφάντρια, Νόνν. Δ. 6. 154.