What is the origin of the idiom "spell disaster" and when to use it?

the idiom "spell disaster" has originated from the figurative use of "spell" as a verb meaning to signify or foretell, the phrase "spell disaster" is a metaphorical expression indicating that something is likely to result in a catastrophe, misfortune, or failure. It is used to convey the idea that a particular situation or action will have dire consequences. Commonly used in both casual and formal contexts, it serves as a warning or a prediction of impending trouble, emphasizing the severity of the potential outcome.