frood vs vulpinary

frood

adj
  • Shrewd; sagacious; wary; cautious. 

vulpinary

adj
  • Crafty, sly, shrewd. 

  • Not spiritual or religious; common. 

  • Relating to a fox. 

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