lacertine vs saurian

lacertine

noun

  • A lizard-like creature. 

adj

  • Lizard-like; lacertian. 

saurian

noun

  • A lizardlike person. 

  • A reptile of the suborder Sauria. 

  • Any large reptilian animal, including crocodiles and reptilian aliens. 

adj

  • Of or related to the members of the suborder Sauria. 

  • Synonym of lizardlike or reptilian. 

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