G3521 — nesteia
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
nesteia — pronounced nace-ti'-ah
from 3522; abstinence (from lack of food, or voluntary and religious); specially, the fast of the Day of Atonement:-- fast(-ing). see GREEK for 3522
8 occurrences in the KJV.
Matthew 17:21
Howbeit this kind goeth not out but by prayer and fasting.
Mark 9:29
And he said unto them, This kind can come forth by nothing, but by prayer and fasting.
Luke 2:37
And she was a widow of about fourscore and four years, which departed not from the temple, but served God with fastings and prayers night and day.
Acts 14:23
And when they had ordained them elders in every church, and had prayed with fasting, they commended them to the Lord, on whom they believed.
Acts 27:9
Now when much time was spent, and when sailing was now dangerous, because the fast was now already past, Paul admonished them,
1 Corinthians 7:5
Defraud ye not one the other, except it be with consent for a time, that ye may give yourselves to fasting and prayer; and come together again, that Satan tempt you not for your incontinency.
2 Corinthians 6:5
In stripes, in imprisonments, in tumults, in labours, in watchings, in fastings;
2 Corinthians 11:27
In weariness and painfulness, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.