cark vs unhinge

cark

verb
  • To labor anxiously. 

  • See cark it. 

unhinge

verb
  • To mentally disturb. 

  • To remove the leaf of a door or a window from its supporting hinges. 

  • To dislocate. 

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