Strong’s Greek
G2236 — hedista
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἡδέως
hedista — pronounced hay'-dis-tah
neuter plural of the superlative of the same as 2234; with great pleasure:--most (very) gladly. see GREEK for 2234
2 occurrences in the KJV.
2 Corinthians 12:9
And he said unto me, My grace is sufficient for thee: for my strength is made perfect in weakness. Most gladly therefore will I rather glory in my infirmities, that the power of Christ may rest upon me.
2 Corinthians 12:15
And I will very gladly spend and be spent for you; though the more abundantly I love you, the less I be loved.