Jove
noun /dʒəʊv/
  /dʒəʊv/
Word Originfrom Latin Jov-, stem of Old Latin Jovis, replaced later by Jupiter. The exclamation by Jove dates from the late 16th cent.
Idioms Idioms 
by Jove 
- (old-fashioned, informal, especially British English) used to express surprise or to emphasize a statement