Purim
You do not dip anything on Purim. You are referring to the holiday of Passover, and the vegeteble is called Karpas (כרפס)
"Purim" (פורים) is the Hebrew name for Purim.
You can say Khag Purim Same'akh (חג פורים שמח) but it's more common just to say Khag Sameakh, which means happy holiday.
Judaism.See also:The origins of Purim
Passover begins about a month after Purim
Purim is the Jewish holiday celebrated on the 14th of the month of Adar. It usually falls out sometime in March on the secular calendar. It is a festival celebrating the hidden miracle of the Persian Jews being saved from extermination by Haman.
Shushan Purim: Purim is during the Hebrew Month of 'Shushan'. simple enough?
Purim is a Jewish holiday, it's not a part of Catholicism.
The text read on the holiday of Purim is the 'Megillat Esther' (scroll of Esther).
Purim is NOT a fasting holiday.
It's called Purim, like in Hebrew.