mistrust vs reckon on

mistrust

verb
  • To suspect, to imagine or suppose (something) to be the case. 

  • To be suspicious. 

  • To have no confidence in (something or someone). 

  • To be wary, suspicious or doubtful of (something or someone). 

noun
  • Lack of trust or confidence; distrust, untrust. 

reckon on

verb
  • To plan on; to expect. 

  • To count on or depend (on). 

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