Old-fashioned exclamation of exultation or surprise (4)

I believe the answer is:

egad

(Other definitions for egad that I've seen before include "My word once" , "Mild oath - aged (anag)" , "Mild oath (archaic)" , "Forgotten curse" , "Old oath" .)

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.