molder vs pejorate

molder

noun
  • One who molds something into shape. 

  • A machine for making molding. 

  • A person who makes molds. 

  • A tool for making molds. 

pejorate

verb
  • To make or become worse; to deteriorate or to worsen. 

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