complain vs mither

complain

verb
  • To express feelings of pain, dissatisfaction, or resentment. 

  • To creak or squeak, as a timber or wheel. 

  • To make a formal accusation or bring a formal charge. 

mither

verb
  • To make an unnecessary fuss, moan, bother. 

  • To pester or irritate someone. 

noun
  • mother 

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