κεφαλαίωσις
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)
-εως, ἡ, comprehension of several notions in a general term, Sch.S.OC 916.
German (Pape)
[Seite 1427] ἡ, summarische Behandlung, Zusammenfassen der Hauptpunkte, Eust.; vgl. Schol. Soph. O. C. 912.