ἀναθαρσεῖν
From LSJ
τίς δ' οἶδεν εἰ τὸ ζῆν μέν ἐστι κατθανεῖν, τὸ κατθανεῖν δὲ ζῆν κάτω νομίζεται → who knows if life is death, and if in the underworld death is considered life
Greek > English (Woodhouse Verbs Reversed)
(see also: ἀναθαρσέω, ἀναθαρσῶ) regain confidence, regain courage
Lexicon Thucydideum
fiduciam recipere, to regain confidence, 5.82.2, 6.30.2, 6.49.2, 6.63.2, 6.102.1, 7.71.3.