else vs otherwise

else

adv
  • Otherwise, if not. 

conj
  • For otherwise; or else. 

adj
  • Other; in addition to previously mentioned items. 

otherwise

adv
  • In different circumstances; or else. 

  • Differently, in another way. 

  • In all other respects. 

adj
  • Other than supposed; different. 

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