Kol Nidre (All Vows - כָּל נִדְרֵי) - the English translation of the declaration with repetition. (also known as Kol Nidrey or Kol Nidrei) (Aramaic: כָּל נִדְרֵי) is an Aramaic declaration recited in the synagogue before the beginning of the evening service on every Yom Kippur. Strictly speaking, it is not a prayer, although commonly spoken of as if it were. This dry legal formula and its ceremonial accompaniment have been charged with emotional undertones since the medieval period, creating a dramatic introduction to Yom Kippur on what is often dubbed "Kol Nidrei night".[2] It is written in Aramaic, not Hebrew. Its name is taken from the opening words, meaning all vows. The formula proactively annuls any personal or religious oaths or prohibitions made upon oneself to God for the next year, so as to preemptively avoid the sin of breaking vows made to God which cannot be or are not upheld. (https://en.wikipedia.org/wiki/Kol_Nidre)