demean vs do credit to

demean

noun
  • resources; means. 

  • demesne. 

verb
  • To debase; to lower; to degrade. 

  • To subtract the mean from (a value, or every observation in a dataset). 

  • To mortify. 

  • To humble, humble oneself; to humiliate. 

do credit to

How often have the words demean and do credit to occurred in a corpus of books? (source: Google Ngram Viewer )