χρησιμότης
From LSJ
ὃν οὐ τύπτει λόγος οὐδὲ ῥάβδος → if words don't get through, neither a beating will | if the carrot doesn't work, the stick will not work either | whom words do not strike, neither does the rod
English (LSJ)
ητος, ἡ,
A usefulness, Gloss.
German (Pape)
[Seite 1375] ἡ, Brauchbarkeit, Nutzbarkeit, K. S.
Greek (Liddell-Scott)
χρησῐμότης: -ητος, ἡ, οὐσιαστ. ἀφῃρ. τοῦ χρήσιμος, ὡς καὶ νῦν, ὅσα τῆς λυσιτελείας και χρησιμότητός ἐστι τῆς κοινῆς αὐτῶν Εὐσ. Ἐκκλ. Ἱστ. 9. 10, 6.