define siddur
A siddur (Hebrew: ×¡×××¨ â [siËduÊ] ; plural ×¡×××¨××, [siduËÊim]) is a Jewish prayer book, containing a set order of daily prayers.The word siddur comes from the Hebrew root Hebrew: ×¡××´×¨ â meaning order.wo authoritative versions of the Ashkenazi siddur were those of Shabbetai Sofer in the 16th century and Seligman Baer in the 19th century; siddurim have also been published reflecting the views of Jacob Emden and the Vilna Gaon.