θρασύνεσθαι
From LSJ
κρεῖττον εἶναι φιλοσόφως ἀποθανεῖν ἢ ἀφιλοσόφως ζῆν → that it is better to die in manner befitting a philosopher than to live unphilosophically
Greek > English (Woodhouse Verbs Reversed)
(see also θρασύνω): be bold, be of good cheer, be of good comfort, keep up one's spirits, take courage, take heart