sestina vs words

sestina

noun
  • A highly structured poem consisting of six six-line stanzas followed by a tercet or envoy, for a total of thirty-nine lines. 

  • A chord comprising the first six members of the harmonic series. 

words

noun
  • Lines in a script for a performance. 

  • Angry debate or conversation; argument. 

  • Lyrics. 

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