siphon vs undersell

siphon

verb
  • To steal or skim off money in small amounts; to embezzle. 

  • To transfer (liquid) by means of a siphon. 

noun
  • A bent pipe or tube with one end lower than the other, in which hydrostatic pressure exerted due to the force of gravity moves liquid from one reservoir to another. 

  • A soda siphon. 

  • A tubelike organ found in animals or elongated cell found in plants. 

undersell

verb
  • To sell something for less than its value. 

  • To sell goods for a lower price than a competitor. 

  • To put forward an idea, or to market a new product, with insufficient enthusiasm. 

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