pokey vs tardigrade

pokey

adj

  • slow 

  • fast 

  • of small volume, cramped 

noun

  • knife. 

  • prison. 

tardigrade

adj

  • Sluggish; moving slowly. 

noun

  • Sloth. 

  • A member of the animal phylum Tardigrada. 

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