adversary vs bane

adversary

noun

  • An opponent or rival. 

bane

noun

  • A cause of misery or death. 

  • A disease of sheep. 

  • Bone. 

verb

  • To be the bane of. 

  • To kill, especially by poison; to be the poison of. 

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