Spartan vs timid

Spartan

adj

  • Of or relating to Sparta or its citizens. 

noun

  • A citizen of Sparta; a native or inhabitant of Sparta. 

  • A red apple cultivar from British Columbia, Canada 

timid

adj

  • Lacking in courage or confidence. 

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