Here’s the great irony. I noticed that most of the people on the internet who use the term ExtrOvert, with an O, and correct those who use an A, are actually big fans of Jung’s definition, and personally define ExtrAversion and IntrOversion in strictly Jungian terms. If they love Jung so much (which I agree they should because Jung was amaaaaazing), why don’t they honor him by using the spelling he actually used? Ironically, it’s the personality scientists, who have a somewhat different usage of the term, who are the ones honoring Jung by staying true to his original spelling.