em- vs i-

em-

prefix
  • The form taken by en- before the labial consonants b and p, as it assimilates place of articulation. 

i-

prefix
  • A form of the prefix in-, used before gn, as in ignoble, ignominy, and ignore. 

  • Alluding to the Internet. 

  • Used to transform English words into words used by Rastafarians with a special meaning. 

  • Alluding to digital devices and computer programs, especially those that are cutting-edge or fashionable, and those from Apple. 

How often have the words em- and i- occurred in a corpus of books? (source: Google Ngram Viewer )