kosher

"acceptable according to Jewish [ritual] law" (JPS); "trustworthy, reliable" (Rosten); acceptable according to dietary laws

seder

The name for the six sections of the Mishnah.

A ceremony involving recitations, singing, food, and drink typically associated with Passover, but also with Tu B'shvat and Rosh Hashanah.

order, orderliness, system, routine

period for Torah study