Today I heard “regex,” short for “regular expression,” out loud for the first time with a /dʒ/ instead of a /g/ as I had always guessed. I felt the same experience when I first heard the abbreviation for character as identical to “char” rather than as /ker/. Is there any research on the patterns by which people choose to pronounce newly coined abbreviations? Does an abbreviation being technical (and therefore more likely to be a word that one might only ever encounter in writing [I’ve heard “regex” once until today, and have never heard “eval” or “cin”]). This is going off the deep end (consider it the “bonus portion”), but for more obscure subjects, is there any evidence of “genealogies” of certain universities producing certain pronunciations?