aphrodisiac vs unfriendly

aphrodisiac

adj
  • Arousing or intensifying sexual desire. 

noun
  • Something, generally a food or drug, having such an effect. 

unfriendly

adj
  • Not friendly; hostile; mean. 

  • Unfavourable. 

adv
  • in an unkind or unfriendly manner; not as a friend 

noun
  • An enemy. 

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