battle vs combat

battle

verb
  • To fight or struggle; to enter into a battle with. 

  • To render (land, soil, etc.) fertile or fruitful. 

  • To feed or nourish (someone or something). 

  • To join in battle; to contend in fight 

noun
  • A contest, a struggle. 

  • A general action, fight, or encounter, in which all the divisions of an army are or may be engaged; a combat, an engagement. 

  • battle buddy 

adj
  • Improving; nutritious; fattening. 

  • Fertile; fruitful. 

combat

verb
  • To fight; to struggle against. 

  • To fight (with); to struggle for victory (against). 

noun
  • A battle, a fight (often one in which weapons are used). 

  • a struggle for victory 

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