The word "nerd" is of American origin, and was first used in the early 1960s. There is some speculation that Dr. Suess used this word first.
he knew the stock was a speculation when he bought it
When word got out that the diamond was missing, there was much speculation among the townsfolk as to who the thief could be.
speculation is a single instance or process of concideration.
what is the word origin for incredulous
the origin is where the word came from but the specific origin of the word ballot is latin root word.
What is the origin of the word govern?
What is the origin of the word kitchen
There is no such word as diaster and so no origin word.