Pesach - Jewish Passover

The word "Pesach" is pronounced PAY-sahch, with the "ch" sounding like the "ch" in the Scottish word "loch."  It stands for "Passover," a holy day (and a major celebration) in the Jewish calendar. 

It commemorates when the  Israelites were spared the trauma of the tenth plague to befall Egypt, during a time when Jews were slaves in that country.