flare-up vs trickle

flare-up

noun
  • A sudden intensification in activity. 

  • An inflammation such as of tendons (tendonitis) or joints (osteoarthritis). 

  • A sudden outbreak, outburst or eruption (originally of flame, but now used more generally of any violent activity or emotion). 

trickle

noun
  • A very thin flow; the act of trickling. 

  • A very thin river. 

verb
  • to flow in a very thin stream or drop continuously. 

  • To move or roll slowly. 

  • to pour a liquid in a very thin stream, or so that drops fall continuously. 

How often have the words flare-up and trickle occurred in a corpus of books? (source: Google Ngram Viewer )