1) a fasting, fast
1a) a voluntary, as a religious exercise
1a1) of private fasting
1a2) the public fast as prescribed by the Mosaic Law and kept yearly on the great day of atonement, the tenth of the month of Tisri (the month Tisri comprises a part of our September and October); the fast accordingly, occurred in the autumn when navigation was usually dangerous on account of storms
1b) a fasting caused by want or poverty
Part of Speech: noun feminine
Citing in TDNT: 4:924, 632
From G3522; abstinence (from lack of food, or voluntary and religious); specifically the fast of the Day of Atonement: - fast (-ing.)
|c festival of atonement||51.11|
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root νηστεία; click on the second column to search for that grammatical form of the root νηστεία; click on the third column to search for that word and grammatical form; click on the total to search for the root νηστεία.