run away vs unearth

run away

verb
  • 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. 

  • To flee by running. 

unearth

verb
  • To drive or draw from the earth. 

  • To uncover or find; to bring out from concealment 

  • To dig up. 

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