יוֹם כִּיפּוּר קָטָן

ביטוי (אנגלית)

Yom Kippur Katan/ Minor Day of Atonement (fast observed by Orthodox Jews every eve of the New Moon)

הגדרה (אנגלית)

A name for the custom of fasting and penitence that some observe on the eve of each Rosh Chodesh; this custom reflects the command in Numbers 28:15 to bring a sin offering on Rosh Chodesh.

("Now the times of repentance will be clarified. On every eve of Rosh Chodesh, it is called Yom Kippur Katan" — Shelah, Tractate Hullin, Torah Or, p. 60)