reptiliform vs sordid

reptiliform

adj
  • Resembling or relating to reptiles. 

sordid

adj
  • Grasping; stingy; avaricious. 

  • Of a dull colour. 

  • Morally degrading. 

  • Dirty or squalid. 

  • Distasteful, ignoble, vile, or contemptible. 

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