A siddur is a Jewish prayer book containing a set order of daily prayers. The word siddur comes from the Hebrew root ס־ד־ר‎, meaning 'order.'

Sephardic Jews, also known as Sephardi Jews or Sephardim, and rarely as Iberian Peninsular Jews, are a Jewish diaspora population associated with the Iberian Peninsula. The term, which is derived from the Hebrew Sepharad, can also refer to the Jews of the Middle East and North Africa, who were also heavily influenced by Sephardic law and customs. Many Iberian Jewish exiled families also later sought refuge in those Jewish communities, resulting in ethnic and cultural integration with those communities over the span of many centuries.