guts vs tenacity

guts

noun
  • One's innermost feelings. 

  • The center of the field. 

  • Courage; determination. 

  • Content, substance. 

  • The entrails or contents of the abdomen. 

  • The essential, core parts. 

  • The ring in the gambling game two-up in which the spinner operates; the centre. 

verb
  • To show determination or courage (especially in the combination guts out). 

  • To eat greedily. 

tenacity

noun
  • The effect of this attraction, cohesiveness. 

  • The quality of bodies which makes them adhere to other bodies; adhesiveness, viscosity. 

  • The greatest longitudinal stress a substance can bear without tearing asunder, usually expressed with reference to a unit area of the cross section of the substance, as the number of pounds per square inch, or kilograms per square centimeter, necessary to produce rupture. 

  • The quality of bodies which keeps them from parting without considerable force, as distinguished from brittleness, fragility, mobility, etc. 

  • The quality or state of being tenacious, or persistence of purpose; tenaciousness. 

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