guts vs nerve

guts

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

  • To eat greedily. 

noun
  • The center of the field. 

  • Courage; determination. 

  • Content, substance. 

  • One's innermost feelings. 

  • 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. 

nerve

verb
  • To give courage. 

  • May their example nerve us to face the enemy. 

  • To give strength; to supply energy or vigour. 

noun
  • A neuron. 

  • The elastic resistance of raw rubber or other polymers to permanent deformation during processing. 

  • mental agitation caused by fear, stress or other negative emotions. 

  • A vein in a leaf; a grain in wood. 

  • Patience; stamina; endurance, fortitude. 

  • A bundle of neurons with their connective tissue sheaths, blood vessels and lymphatics. 

  • Courage; boldness; audacity; gall. 

  • One's neural structures considered collectively as, and conceptually equated with, one's psyche; 

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