καθανύω
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)
Att. for κατανύω, acc. to Hdn.Gr.1.541; καθήνυσαν cited by Phryn.PSp.23B.; καθανύσαι· συντελέσαι, Hsch.: but codd. of Att. writers have only κατανύω, q.v. (καθήνυσαν is cj. in S.El.1451 (Dobree), καθανύσαι, -σας, -σειν, in X.HG7.1.15, 5.4.49, 20 (Cobet)).