foe vs other side

foe

noun
  • An enemy. 

  • A unit of energy equal to 10⁴⁴ joules. 

other side

noun
  • Used other than figuratively or idiomatically: see other, side. 

  • The afterlife, as a supernatural realm inhabited by spirits of deceased people. 

How often have the words foe and other side occurred in a corpus of books? (source: Google Ngram Viewer )