levigate vs nonexcessive

levigate

adj
  • Made less harsh or burdensome; alleviated. 

  • Smooth. 

verb
  • To separate finer grains from coarser ones by suspension in a liquid. 

  • To make smooth or polish. 

  • To lighten. 

  • To belittle. 

  • To make into a smooth paste or fine powder. 

nonexcessive

adj
  • Not excessive. 

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