θρασύνειν

From LSJ

Δεινότερον οὐδὲν ἄλλο μητρυιᾶς κακόν → Nulla est noverca pestis exitalior → Kein schlimmres Übel gibt's als eine Stiefmutter

Menander, Monostichoi, 127

Greek > English (Woodhouse Verbs Reversed)

cheer, embolden, encourage, nerve, assert oneself, be bold, raise spirits of (see also: θρασύνω)

Lexicon Thucydideum

confirmare, to strengthen, 1.142.8,
PASS. insolescere, to become insolent, 5.104.1.