"My stars!" (5)

(Other definitions for egad that I've seen before include "Old exclamation; aged (anagram)" , "Archaic expression of anger, surprise, etc" , "My word once" , "Archaic exclamation of surprise" , "Old oath" .)

(Another definition for lordy that I've seen is " Expression of surprise".)

(Other definitions for i say that I've seen before include "Good heavens!" , "goodness!" , "Expression of surprise" , "Exclamation of surprise" , "Gosh!" .)