Neder

In Judaism, a neder^{[pronunciation?]} (נדר, plural nedarim^{[pronunciation?]}) is a kind of vow or oath. The neder may consist of performing some act in the future (either once or regularly) or abstaining from a particular type of activity of the person's choice. The concept of the neder and the Jewish law related to it, is described at the beginning of the parashah of Matot.