Strong’s Greek
G2431 — hilaros
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἱλαρός
hilaros — pronounced hil-ar-os'
from the same as 2436; propitious or merry ("hilarious"), i.e. prompt or willing:--cheerful. see GREEK for 2436
1 occurrence in the KJV.
2 Corinthians 9:7
Every man according as he purposeth in his heart, so let him give; not grudgingly, or of necessity: for God loveth a cheerful giver.