ferment vs free-for-all

ferment

noun
  • A state of agitation or of turbulent change. 

  • Something, such as a yeast or barm, that causes fermentation. 

  • A gentle internal motion of the constituent parts of a fluid; fermentation. 

  • A catalyst. 

verb
  • To stir up, agitate, cause unrest or excitement in. 

  • To react, using fermentation; especially to produce alcohol by aging or by allowing yeast to act on sugars; to brew. 

free-for-all

noun
  • Chaos; a chaotic situation lacking rules or control. 

  • Deathmatch, sometimes specifically one in which every player is pitted against all the others. 

adj
  • Open to anyone and with no or few rules. 

How often have the words ferment and free-for-all occurred in a corpus of books? (source: Google Ngram Viewer )