πολλαχῆ
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)
A Adv. in many places, δεδήλωται Democr.10; opp. οὐδαμῇ, X.An.7.3.12.
II in divers manners, A.Supp.468; πολλὰ π. S.OC1626; τῇ τε ἄλλῃ π. καὶ δὴ καὶ… Hdt.6.21, cf. Th.8.87; π. καὶ ἄλλῃ Pl.Tht.179c, etc.; πολλάκις καὶ π. Id.R.538d; for many reasons, Hdt.1.42.
Greek (Liddell-Scott)
πολλᾰχῆ: Ἐπίρρ., πολλάκις, συχνάκις, Ἡρόδ. 1. 42., 6. 21. ἀντίθετ. τῷ οὐδαμῆ, Ξεν. Ἀν. 7. 3, 12. ΙΙ. κατὰ πολλοὺς τρόπους, ποικίλως, πολυτρόπως, Αἰσχύλ. Ἱκέτ. 468· πολλὰ πολλαχῇ Σοφ. Ο. Κ. 1626· τῇ τε ἄλλῃ π., καὶ δὴ καί... Ἡρόδ. 6. 21· πρβλ. Θουκ. 8. 87· π. ἄλλῃ Πλάτ. Θεαίτ. 179C, κτλ.· πολλάκις καὶ π. ὁ αὐτ. ἐν Πολ. 538D.
Middle Liddell
I. many times, often, Hdt., Xen.
II. in divers manners, Hdt., Soph., etc.
