simplify vs uglify

simplify

verb
  • To become simpler. 

  • To make simpler, either by reducing in complexity, reducing to component parts, or making easier to understand. 

uglify

verb
  • Synonym of minify 

  • To become ugly. 

  • To make ugly; to destroy or worsen the appearance or attractiveness of. 

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