profligate vs welcher

profligate

noun
  • An abandoned person; one openly and shamelessly vicious; a dissolute person. 

  • An overly wasteful or extravagant individual. 

adj
  • Inclined to waste resources or behave extravagantly. 

  • Immoral; abandoned to vice. 

welcher

noun
  • One who welches. 

  • A Welshman or person of Welsh descent. 

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