ἀχρηστία
From LSJ
κρεῖττον εἶναι φιλοσόφως ἀποθανεῖν ἢ ἀφιλοσόφως ζῆν → that it is better to die in manner befitting a philosopher than to live unphilosophically
English (LSJ)
Ion. ἀχρηστίη, ἡ,
A uselessness, unfitness, Hp.Praec. 9, Pl.R.489b, AP15.38 (Comet.), Them.Or.26.326a. II non-usance of a thing, Pl.R.333d, Plu.2.135c.
German (Pape)
[Seite 419] ἡ, Unbrauchbarkeit, Plat. Rep. VI, 48) b; Nichtgebrauch, I, 333 d.