The Evil Dead is an incredibly iconic name in horror, but the franchise's title was almost completely different. Despite The Evil Dead being a long-running series that has enamored horror fans for decades, The Evil Dead actually wasn't the first choice for the franchise's title, with it going through several different ideas before landing on the final name. Luckily, though, the title ended up being changed, with the updated Evil Dead name probably saving the franchise.

https://screenrant.com/evil-dead-original-title-change-book-of-the-dead-good/