batrachian vs rascal

batrachian

noun

  • A frog or toad. 

adj

  • Pertaining to or resembling a frog or toad. 

rascal

noun

  • Sometimes diminutive: a cheeky person or creature; a troublemaker. 

  • A dishonest person; a rogue, a scoundrel, a trickster. 

  • A member of a criminal gang. 

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