run away vs skedaddle

run away

verb
  • To flee by running. 

  • To leave home, or other place of residence, usually unannounced, or to make good on a threat, with such action usually performed by a child or juvenile. 

  • To become a runaway. 

skedaddle

verb
  • To move or run away quickly. 

  • To spill; to scatter. 

noun
  • The act of running away; a scurrying off. 

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