ἐγκεντρίς
From LSJ
Έγ', ὦ ταλαίπωρ', αὐτὸς ὧν χρείᾳ πάρει. Τὰ πολλὰ γάρ τοι ῥήματ' ἢ τέρψαντά τι, ἢ δυσχεράναντ', ἢ κατοικτίσαντά πως, παρέσχε φωνὴν τοῖς ἀφωνήτοις τινά –> Wretched brother, tell him what you need. A multitude of words can be pleasurable, burdensome, or they can arouse pity somehow — they give a kind of voice to the voiceless.
English (LSJ)
ίδος, ἡ,
A sting, Ar.V.427. 2 goad, X.Cyn.6.1, Pl.Com.40; also, spur, Pherecr.48. 3 pointed stile for writing, Poll.8.16, Aristaenet.1.20. 4 spike worn on the leg for climbing, περιθέμενον . . ἐγκεντρίδας ἀναδραμεῖν εἰς τοὺς τοίχους Arist.Fr.84.