hold to ransom vs ravish

hold to ransom

verb
  • To hold (someone) hostage until a ransom is paid. 

ravish

verb
  • To transport with joy or delight; to delight to ecstasy. 

  • To have vigorous sexual intercourse with. 

How often have the words hold to ransom and ravish occurred in a corpus of books? (source: Google Ngram Viewer )