The term “deviled,” in reference to food, was in use in the 18th century, with the first known print reference appearing in 1786. In the 19th century, it came to be used most often with spicy or zesty food, including eggs prepared with mustard, pepper or other ingredients stuffed in the yolk cavity.
In some parts of the Southern and Midwestern United States, the terms “salad eggs” or “dressed eggs” are used, particularly when the dish is served in connection with a church function - presumably to avoid dignifying the word “deviled.”
A nice spread of deviled eggs is so awesome. Just poppin’ those bastards one after another. Ooooooh weeeee I see you deviled eggs, I see you.