agonizing vs racking

agonizing

noun
  • The act of one who agonizes. 

adj
  • Causing physical or mental agony. 

racking

noun
  • spun yarn used in racking ropes 

  • A method of asphalt shingle application, whereby shingle courses are applied vertically, up the roof rather than laterally across and up. 

  • The process of clarifying, and thereby deterring further fermentation of, beer, wine or cider by draining or siphoning it from the dregs. 

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