helter-skelter vs stuttering

helter-skelter

adj
  • Carelessly hurried and confused. 

adv
  • In confused, disorderly haste. 

noun
  • A helical fairground slide. 

  • Confusion or turmoil. 

stuttering

adj
  • Hesitant. 

  • That stutters. 

noun
  • An instance of stuttering. 

  • A speech disorder in which the flow of speech is disrupted by involuntary repetitions and prolongations of sounds, syllables, words or phrases, and by involuntary silent pauses or blocks in which the stutterer is unable to produce sounds. 

How often have the words helter-skelter and stuttering occurred in a corpus of books? (source: Google Ngram Viewer )