hassle vs helter-skelter

hassle

noun
  • Trouble, bother, unwanted annoyances or problems. 

  • A fight or argument. 

  • An action which is not worth the difficulty involved. 

adj
  • hassling; hasslesome 

verb
  • To engage in a mock dogfight. 

  • To pick a fight or start an argument with. 

  • To trouble, to bother, to annoy. 

helter-skelter

noun
  • Confusion or turmoil. 

  • A helical fairground slide. 

adv
  • In confused, disorderly haste. 

adj
  • Carelessly hurried and confused. 

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