recommend vs sifflicate

recommend

verb
  • To advise, propose, counsel favorably 

  • To make acceptable; to attract favor to. 

  • To bestow commendation on; to represent favourably; to suggest, endorse or encourage as an appropriate choice. 

sifflicate

verb
  • To suggest 

  • To criticise 

  • To supplicate, petition, importune, or wheedle 

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