θερμουργός
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)
όν,
A doing hot and hasty acts, reckless, X.Mem.1.3.9 (Sup.), Luc.Tim.2.
German (Pape)
[Seite 1202] hitzig, kühn, unbesonnen handelnd, Xen. Mem. 1, 3, 9, neben ἀνόητος u. ῥιψοκίνδυνος; vgl. Luc. Tim. 2. S. θερμοεργός.
Greek (Liddell-Scott)
θερμουργός: όν (*ἔργω) ἐνεργῶν θερμῶς, ἀπερίσκεπτος, Ξεν. Ἀπομν. 1. 3, 9, Λουκ. Τίμ. 2.
