How do you spell Astonishment

Available Definitions:
1)  n. - The condition of one who is stunned. Hence: Numbness; loss of sensation; stupor; loss of sense.
2)  n. - Dismay; consternation.
3)  n. - The overpowering emotion excited when something unaccountable, wonderful, or dreadful is presented to the mind; an intense degree of surprise; amazement.
4)  n. - The object causing such an emotion.