Halloween
How Halloween Got It's Name
How Halloween Got It's Name.
Halloween was originally called All Hallows' Eve, Evening before ALL SAINTS' DAY. "Hallow" is an Old English word for "Saint". It was shortened to Hallowe'en then to the word we use today, Halloween. Satanists adopted this is one of their three main holidays. But All-Saints-Day and All-Hallows-Eve were NEVER celebrated together. It has always been the day after.
citation-http://wiki.answers.com/Q/How_did_Halloween_get_its_name