advancement vs worsening

advancement

noun
  • Property given, usually by a parent to a child, in advance of a future distribution. 

  • The act of advancing; promotion to a higher place or dignity 

  • An advance of money or value; payment in advance. 

  • The state of being advanced 

  • How advanced something is 

worsening

noun
  • A worse situation; an aggravation or deterioration 

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