Strong’s Greek
G3523 — nestis
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
νῆστις
nestis — pronounced nace'-tis
from the inseparable negative particle ne- (not) and 2068; not eating, i.e. abstinent from food (religiously):--fasting. see GREEK for 2068
2 occurrences in the KJV.
Matthew 15:32
Then Jesus called his disciples unto him, and said, I have compassion on the multitude, because they continue with me now three days, and have nothing to eat: and I will not send them away fasting, lest they faint in the way.
Mark 8:3
And if I send them away fasting to their own houses, they will faint by the way: for divers of them came from far.