convolute vs interwind

convolute

verb
  • To confuse, mix up (something) with something else. 

  • To make unnecessarily complex. 

  • To fold or coil into numerous overlapping layers. 

adj
  • Convoluted. 

  • Coiled such that one edge is inside, and one outside the coil, giving a spiral effect in cross section. 

interwind

verb
  • To wind around; to intertwine. 

noun
  • The equivalent of solar wind from a pulsar. 

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