scrag vs string up

scrag

verb
  • To destroy or kill. 

  • To harass; to manhandle. 

noun
  • A rough or unkempt woman. 

  • A ragged, stunted tree or branch. 

  • A scrog. 

  • A chav or ned; a stereotypically loud and aggressive person of lower social class. 

string up

verb
  • To kill (a person) by hanging, especially to lynch. 

  • To concatenate; to link in a line. 

  • To suspend by means of rope, cord or similar material. 

How often have the words scrag and string up occurred in a corpus of books? (source: Google Ngram Viewer )