ἀναθαρσεῖν

From LSJ

ἀλώπηξ, αἰετοῦ ἅ τ' ἀναπιτναμένα ῥόμβον ἴσχει → a fox, which, by spreading itself out, wards off the eagle's swoop

Source

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.