Dr. Watson exclamation (4)
I believe the answer is:
egad
(Other definitions for egad that I've seen before include "My word once" , "Archaic expression of anger, surprise, etc" , "Christ" , "Mild oath (archaic)" , "Forgotten curse" .)
I believe the answer is:
egad
(Other definitions for egad that I've seen before include "My word once" , "Archaic expression of anger, surprise, etc" , "Christ" , "Mild oath (archaic)" , "Forgotten curse" .)