(Yid., Peysekh; Heb., Pesaḥ), the eight-day holiday commemorating the exodus of the Israelites from Egypt. The special dietary requirements of the holiday—the ban on leavened products and the need for matzo and other special foods—necessitated early planning. Sometimes goose fat was rendered on Hanukkah to be used for Passover; serious preparations for the holiday begin a month before, on Purim, with the collection of moes khitim (Heb., ma‘ot ḥitim;money for wheat), intended to help the poor pay for the special foods needed for Passover. Other preparations for Passover included whitewashing houses, painting walls, washing floors, and airing out clothes. Books, too, were aired out in the open. It was the season when new clothes and shoes were bought, to be worn during the festival.