struggle vs swedge

struggle

verb
  • To strive, or to make efforts, with a twisting, or with contortions of the body. 

  • To strive, to labour in difficulty, to fight (for or against), to contend. 

noun
  • A contortion of the body in an attempt to escape or to perform a difficult task. 

  • Strife, contention, great effort. 

swedge

verb
  • To shape metal using a hammer or other force. 

  • To leave (a restaurant etc.) without paying. 

  • To fold under or round an object. 

noun
  • A tool (originally a bevelled chisel) for making grooves in horseshoes. 

  • The drug MDMA. 

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