inosculate vs piecen

inosculate

verb
  • To unite. 

  • To homogenize; to make continuous. 

  • To open into. 

  • To intercommunicate; to interjoin. 

adj
  • Pertaining to or characterized by inosculation. 

piecen

verb
  • To join; piece (together); fay. 

  • To extend by adding a part or parts. 

  • To join broken threads or ends in spinning. 

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