Ark vs Mole

Ark

name
  • The boat built by the Biblical Noah to carry himself and the animals of the planet during the Flood. 

  • The chest carried by the Hebrews containing the stone tablets carved with the Ten Commandments. 

Mole

name
  • A river in Devon, England, tributary to the Taw. 

  • A river in Surrey, England, tributary to the Thames. 

  • A surname. 

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