...She's in love, egad, ... (From The Marriage Proposal by Anton Chekov)
geeminy
intj
An exclamation used similarly to "Holy cow!" or "Oh my goodness!" It can also be used to indicate seriousness when preceded by "I wish to" or "I swear to".
How often have the words egad and geeminy occurred in a corpus of books? (source: Google Ngram Viewer )