obliquitous vs treacherous

obliquitous

adj

  • Characterized by obliquity. 

treacherous

adj

  • Exhibiting treachery. 

  • Deceitful; inclined to betray. 

  • Unreliable; dangerous. 

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