beetroot vs flicker

beetroot

verb
  • To turn a bright red or purple colour. 

noun
  • A normally deep-red-coloured root vegetable usually cooked or pickled before eating; Synonym of beet. 

  • The edible part of the root of a beet plant, raw or prepared. 

flicker

verb
  • To burn or shine unsteadily, or with a wavering light. 

  • To flutter or flap. 

  • To keep going on and off; to appear and disappear for short moments; to flutter. 

noun
  • Any of certain small woodpeckers, especially of the genus Colaptes. 

  • One who flicks. 

  • An unsteady flash of light. 

  • A short moment. 

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