chirl vs shilly-shally

chirl

verb

  • To emit a low sound; to warble. 

noun

  • A kind of musical warble. 

shilly-shally

verb

  • To vacillate. 

  • To procrastinate. 

noun

  • Indecision; irresolution. 

adj

  • Indecisive; wavering. 

How often have the words chirl and shilly-shally occurred in a corpus of books? (source: Google Ngram Viewer )