Nittel

Nittel, or Nittel Nacht, is a traditional Jewish custom observed by some Ashkenazi communities on certain nights, most notably the eve of Christmas. On these nights, practitioners refrain from engaging in Torah study or other strictly religious scholarly pursuits and instead occupy themselves with non-Torah activities such as secular reading, games, or socializing. The term nittel is a Yiddish word associated with death, and the practice is often linked to beliefs that these nights carry a special spiritual danger or are inappropriate for holy study; the exact etymology and rationale vary by community.

Origins of the practice are debated. It appears in medieval German Jewish contexts and was transmitted through later Ashkenazi tradition. Explanations point to responses to Christian holidays and to a perception that the surrounding festive atmosphere diminished the appropriateness of intensive Torah study. The custom was not universal, and many communities did not observe it or followed different customs on related nights.

Practices vary by locale. The central feature is the postponement or avoidance of Torah study on the specified night. In some households, this is accompanied by choosing secular or non-religious activities, while others may substitute prayers or Psalms that are less strictly tied to Torah study. The intensity and duration of the practice differ, with some adherents observing only the evening or a portion of the night.

Today, Nittel Nacht is relatively uncommon and more often associated with older or specific Hasidic or regional traditions. It is discussed in historical and ethnographic sources as an example of how Jewish communities navigated overlapping religious and cultural calendars.