If you are aghast, you might look like you've just seen a ghost, or something similarly shocking. "Aghast" traces back to a Middle English verb, gasten, meaning "to frighten." "Gasten" (which also gave us ghastly, meaning "terrible or frightening) comes from "gast," a Middle English spelling of the word ghost.
Who is an aghast person?
The definition of aghast is someone or something who has been surprised, awed or horrified. ... An example of someone who might feel aghast is a person who returns home to find his house has burned down.
Is Aghasted a word?
adjective. In early use: †frightened, terrified (obsolete). Later: filled with shock or horror; made aghast.