Strong’s Greek
G120 — athumeo
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀθυμέω
athumeo — pronounced ath-oo-meh'-o
from a compound of 1 (as a negative particle) and 2372; to be spiritless, i.e. disheartened:--be dismayed. see GREEK for 1 see GREEK for 2372
1 occurrence in the KJV.
Colossians 3:21
Fathers, provoke not your children to anger, lest they be discouraged.