chunter vs godmother

chunter

verb
  • To speak in a soft, indistinct manner, mutter. 

  • To grumble, complain. 

godmother

verb
  • To act as godmother to. 

noun
  • A woman present at the christening of a baby who promises to help raise the child in a Christian manner; a female godparent who sponsors the baptism of a child. 

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