entrench vs found

entrench

verb
  • To establish a substantial position in business, politics, etc. 

  • To surround or provide with a trench, especially for defense; to dig in. 

  • To dig or excavate a trench; to trench. 

  • To invade; to encroach; to infringe or trespass; to enter on, and take possession of, that which belongs to another; usually followed by on or upon. 

  • To cut in; to furrow; to make trenches in or upon. 

  • To become completely absorbed in and fully accept one's beliefs, even in the face of evidence against it and refusing to be reasoned with. 

found

verb
  • To start (an institution or organization). 

  • To form by melting a metal and pouring it into a mould; to cast. 

  • To melt, especially of metal in an industrial setting. 

  • To begin building. 

noun
  • A thin, single-cut file for comb-makers. 

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