kvetcher vs scolder

kvetcher

noun
  • A person who kvetches; a complainer, kvetch. 

scolder

noun
  • One who scolds. 

  • The oldsquaw. 

  • The oystercatcher, so called from its shrill cries. 

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